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Finding the Fourth Proportional to 8,737.56, 13,089 and 4,123.80

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Solution

The fourth proportional to 8,737.56, 13,089 and 4,123.80 is: 6,177.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,737.56 : 13,089 = 4,123.80 : x
  2. Step 2: Convert to fraction form
    8,737.56/13,089 = 4,123.80/x
  3. Step 3: Cross multiply
    8,737.56x = 13,089 × 4,123.80
  4. Step 4: Simplify right side
    8,737.56x = 53,976,418.20
  5. Step 5: Solve for x
    x = 53,976,418.20/8,737.56
  6. Step 6: Final answer
    x = 6,177.52

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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.