Ratio Calculator

Understanding Ratios

A ratio is a comparison between two numbers. It indicates how many times one number contains another. Ratios can be written in several ways: using a colon (e.g., 3:4), or as a fraction (e.g., 3/4). In many real-world scenarios, ratios are used to scale quantities or compare proportions. For example, in cooking, a recipe might call for a ratio of ingredients, or in maps, scales are given as ratios to represent distances. This calculator helps you find a missing value in a proportion, which is essentially two ratios set equal to each other. By entering three known values, you can determine the unknown fourth value, making it a useful tool for various calculations involving proportions.

• Example: If the ratio of apples to oranges is 2:3 and you have 6 apples, how many oranges do you have? Using the calculator, input 2 as Ratio A Numerator, 3 as Ratio A Denominator, and 6 as Ratio B Numerator. The calculator will find the missing Ratio B Denominator, which is 9 oranges.
• Use Cases: Ratios are used in scaling recipes, adjusting mixtures, calculating map distances, financial analysis, and much more.
• Formula: For ratios a:b and c:d, if a/b = c/d, then if any three values are known, the fourth can be found.