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Finding the Fourth Proportional to 8,468.43, 12,695.69 and 4,248.88

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Solution

The fourth proportional to 8,468.43, 12,695.69 and 4,248.88 is: 6,369.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,468.43 : 12,695.69 = 4,248.88 : x
  2. Step 2: Convert to fraction form
    8,468.43/12,695.69 = 4,248.88/x
  3. Step 3: Cross multiply
    8,468.43x = 12,695.69 × 4,248.88
  4. Step 4: Simplify right side
    8,468.43x = 53,942,463.33
  5. Step 5: Solve for x
    x = 53,942,463.33/8,468.43
  6. Step 6: Final answer
    x = 6,369.83

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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.