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Finding the Fourth Proportional to 8,337.80, 12,500.46 and 2,787.92

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Solution

The fourth proportional to 8,337.80, 12,500.46 and 2,787.92 is: 4,179.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,337.80 : 12,500.46 = 2,787.92 : x
  2. Step 2: Convert to fraction form
    8,337.80/12,500.46 = 2,787.92/x
  3. Step 3: Cross multiply
    8,337.80x = 12,500.46 × 2,787.92
  4. Step 4: Simplify right side
    8,337.80x = 34,850,282.44
  5. Step 5: Solve for x
    x = 34,850,282.44/8,337.80
  6. Step 6: Final answer
    x = 4,179.79

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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.