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Finding the Fourth Proportional to 8,251.44, 12,375 and 2,408.64

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Solution

The fourth proportional to 8,251.44, 12,375 and 2,408.64 is: 3,612.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,251.44 : 12,375 = 2,408.64 : x
  2. Step 2: Convert to fraction form
    8,251.44/12,375 = 2,408.64/x
  3. Step 3: Cross multiply
    8,251.44x = 12,375 × 2,408.64
  4. Step 4: Simplify right side
    8,251.44x = 29,806,920
  5. Step 5: Solve for x
    x = 29,806,920/8,251.44
  6. Step 6: Final answer
    x = 3,612.33

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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.