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Finding the Fourth Proportional to 8,902.61, 13,350.27 and 3,968.87

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Solution

The fourth proportional to 8,902.61, 13,350.27 and 3,968.87 is: 5,951.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,902.61 : 13,350.27 = 3,968.87 : x
  2. Step 2: Convert to fraction form
    8,902.61/13,350.27 = 3,968.87/x
  3. Step 3: Cross multiply
    8,902.61x = 13,350.27 × 3,968.87
  4. Step 4: Simplify right side
    8,902.61x = 52,985,524.54
  5. Step 5: Solve for x
    x = 52,985,524.54/8,902.61
  6. Step 6: Final answer
    x = 5,951.69

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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.