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Finding the Fourth Proportional to 8,168.56, 12,248.10 and 4,469.80

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Solution

The fourth proportional to 8,168.56, 12,248.10 and 4,469.80 is: 6,702.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.56 : 12,248.10 = 4,469.80 : x
  2. Step 2: Convert to fraction form
    8,168.56/12,248.10 = 4,469.80/x
  3. Step 3: Cross multiply
    8,168.56x = 12,248.10 × 4,469.80
  4. Step 4: Simplify right side
    8,168.56x = 54,746,557.38
  5. Step 5: Solve for x
    x = 54,746,557.38/8,168.56
  6. Step 6: Final answer
    x = 6,702.11

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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.