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Finding the Fourth Proportional to 8,487.52, 12,734.64 and 3,294.88

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Solution

The fourth proportional to 8,487.52, 12,734.64 and 3,294.88 is: 4,943.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.52 : 12,734.64 = 3,294.88 : x
  2. Step 2: Convert to fraction form
    8,487.52/12,734.64 = 3,294.88/x
  3. Step 3: Cross multiply
    8,487.52x = 12,734.64 × 3,294.88
  4. Step 4: Simplify right side
    8,487.52x = 41,959,110.64
  5. Step 5: Solve for x
    x = 41,959,110.64/8,487.52
  6. Step 6: Final answer
    x = 4,943.62

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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.