Home / 16,456.20-22,695.24-11,428.80

Finding the Fourth Proportional to 16,456.20, 22,695.24 and 11,428.80

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Solution

The fourth proportional to 16,456.20, 22,695.24 and 11,428.80 is: 15,761.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,456.20 : 22,695.24 = 11,428.80 : x
  2. Step 2: Convert to fraction form
    16,456.20/22,695.24 = 11,428.80/x
  3. Step 3: Cross multiply
    16,456.20x = 22,695.24 × 11,428.80
  4. Step 4: Simplify right side
    16,456.20x = 259,379,358.91
  5. Step 5: Solve for x
    x = 259,379,358.91/16,456.20
  6. Step 6: Final answer
    x = 15,761.80

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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.