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Finding the Fourth Proportional to 18,092.80, 27,139.20 and 8,737.30

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Solution

The fourth proportional to 18,092.80, 27,139.20 and 8,737.30 is: 13,105.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,092.80 : 27,139.20 = 8,737.30 : x
  2. Step 2: Convert to fraction form
    18,092.80/27,139.20 = 8,737.30/x
  3. Step 3: Cross multiply
    18,092.80x = 27,139.20 × 8,737.30
  4. Step 4: Simplify right side
    18,092.80x = 237,123,332.16
  5. Step 5: Solve for x
    x = 237,123,332.16/18,092.80
  6. Step 6: Final answer
    x = 13,105.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.