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Finding the Fourth Proportional to 8,757.24, 13,134.24 and 2,912.28

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Solution

The fourth proportional to 8,757.24, 13,134.24 and 2,912.28 is: 4,367.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.24 : 13,134.24 = 2,912.28 : x
  2. Step 2: Convert to fraction form
    8,757.24/13,134.24 = 2,912.28/x
  3. Step 3: Cross multiply
    8,757.24x = 13,134.24 × 2,912.28
  4. Step 4: Simplify right side
    8,757.24x = 38,250,584.47
  5. Step 5: Solve for x
    x = 38,250,584.47/8,757.24
  6. Step 6: Final answer
    x = 4,367.88

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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.