Ratio proportion calculator
Numbers, grades, and study plans stay in your browser; results show formulas or intermediate values for checking.
Search and use guide
Ratio proportion calculator
Solve a missing proportion value and show the formula. privacy-first-browser-tooling
Who it helps
- Solve a missing proportion value and show the formula.
- Solves a:b = c:x as x = b × c ÷ a for scale, recipe, and unit-ratio estimates.
- for 2:3 = 8:x, calculate x = 12 and show the proportion formula.
What you can enter
- for 2:3 = 8:x, calculate x = 12 and show the proportion formula.
- Solves a:b = c:x as x = b × c ÷ a for scale, recipe, and unit-ratio estimates.
How to read results
Solves a:b = c:x as x = b × c ÷ a for scale, recipe, and unit-ratio estimates. privacy-first-browser-tooling
Data and privacy
GoGo Tools records analytics by tool slug only and does not include your input values. privacy-safe-analytics-only
Feedback
How can we improve this tool?
Send a suggestion or bug report for this tool.
FAQ
Does it only show the answer?
No. It shows formulas or intermediate values so you can check the calculation.
Is data uploaded?
No. Grades, numbers, and study plans stay in your browser.
Is this an official grade system?
No. Official grades, GPA mappings, and school rules should come from your institution.
Can I use it with different school systems?
Yes as a general calculator; adjust inputs for your course weights and grading scale.