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Finding the Fourth Proportional to 8,731.70, 13,098.10 and 4,344.74

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Solution

The fourth proportional to 8,731.70, 13,098.10 and 4,344.74 is: 6,517.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.70 : 13,098.10 = 4,344.74 : x
  2. Step 2: Convert to fraction form
    8,731.70/13,098.10 = 4,344.74/x
  3. Step 3: Cross multiply
    8,731.70x = 13,098.10 × 4,344.74
  4. Step 4: Simplify right side
    8,731.70x = 56,907,817.27
  5. Step 5: Solve for x
    x = 56,907,817.27/8,731.70
  6. Step 6: Final answer
    x = 6,517.38

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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.