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Finding the Fourth Proportional to 8,711.87, 13,064.92 and 3,372.57

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Solution

The fourth proportional to 8,711.87, 13,064.92 and 3,372.57 is: 5,057.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,711.87 : 13,064.92 = 3,372.57 : x
  2. Step 2: Convert to fraction form
    8,711.87/13,064.92 = 3,372.57/x
  3. Step 3: Cross multiply
    8,711.87x = 13,064.92 × 3,372.57
  4. Step 4: Simplify right side
    8,711.87x = 44,062,357.24
  5. Step 5: Solve for x
    x = 44,062,357.24/8,711.87
  6. Step 6: Final answer
    x = 5,057.74

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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.