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Finding the Fourth Proportional to 8,912.34, 13,369.24 and 2,671.88

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Solution

The fourth proportional to 8,912.34, 13,369.24 and 2,671.88 is: 4,008.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.34 : 13,369.24 = 2,671.88 : x
  2. Step 2: Convert to fraction form
    8,912.34/13,369.24 = 2,671.88/x
  3. Step 3: Cross multiply
    8,912.34x = 13,369.24 × 2,671.88
  4. Step 4: Simplify right side
    8,912.34x = 35,721,004.97
  5. Step 5: Solve for x
    x = 35,721,004.97/8,912.34
  6. Step 6: Final answer
    x = 4,008.04

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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.