Home / 15,544.91-21,452.43-8,471.79

Finding the Fourth Proportional to 15,544.91, 21,452.43 and 8,471.79

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Solution

The fourth proportional to 15,544.91, 21,452.43 and 8,471.79 is: 11,691.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,544.91 : 21,452.43 = 8,471.79 : x
  2. Step 2: Convert to fraction form
    15,544.91/21,452.43 = 8,471.79/x
  3. Step 3: Cross multiply
    15,544.91x = 21,452.43 × 8,471.79
  4. Step 4: Simplify right side
    15,544.91x = 181,740,332.33
  5. Step 5: Solve for x
    x = 181,740,332.33/15,544.91
  6. Step 6: Final answer
    x = 11,691.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.