Ratio Calculator
A ratio indicates how many times one number contains another. Ratios are vital for mixing ingredients, scaling blueprint models, adjusting photography aspect ratios, and financial analysis.
Formula & Mechanics
A / B = C / D ⟹ D = (B × C) / A
In any proportional relationship, the cross-multiplication products are equal: A × D = B × C. If one value is unknown, cross-multiply and divide.
Worked Step-by-Step Example
Scenario: Solve 2 : 5 = 10 : D
- Set up equation: 2 × D = 5 × 10
- Simplify right side: 5 × 10 = 50
- Divide by 2: D = 50 ÷ 2 = 25
D = 25. The ratio 2:5 is equivalent to 10:25.
Frequently Asked Questions
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