Proportion Calculator
Solve A:B = C:D ratio equations by locating the unknown X at any position
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Solve ratio proportions. Find the unknown value X in the A:B = C:D formula using inner and outer product mathematics.
How to use
- Select the position of the unknown variable X (A, B, C, or D).
- Input the numeric values for the remaining three known fields.
- Check the calculated X result and inspect the step-by-step algebraic solutions.
FAQ
- What is the property of proportions?
- In any proportion equation A:B = C:D, the product of the means (B * C) is equal to the product of the extremes (A * D). This allows solving for any single unknown variable.