Algebra & Equations
Proportion Solver
Solve a∕b = c∕x for x.
Formula
Formula
x = b·ca
Variables
| Symbol | Definition | Type & range | Units | Role |
|---|---|---|---|---|
| a, b | known ratio | real number (ℝ) | — | input |
| c | known value | real number (ℝ) | — | input |
| x | unknown | computed result | — | result |
Try it yourself
Interactive calculator
Worked examples
Example 1
Givena = 2, b = 3, c = 10
Result15
Example 2
Givena = 5, b = 8, c = 20
Result32