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Finding the Fourth Proportional to 8,337.55, 12,500.11 and 2,787.61

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Solution

The fourth proportional to 8,337.55, 12,500.11 and 2,787.61 is: 4,179.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,337.55 : 12,500.11 = 2,787.61 : x
  2. Step 2: Convert to fraction form
    8,337.55/12,500.11 = 2,787.61/x
  3. Step 3: Cross multiply
    8,337.55x = 12,500.11 × 2,787.61
  4. Step 4: Simplify right side
    8,337.55x = 34,845,431.64
  5. Step 5: Solve for x
    x = 34,845,431.64/8,337.55
  6. Step 6: Final answer
    x = 4,179.34

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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.