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Finding the Fourth Proportional to 8,901.74, 13,346.46 and 3,901.72

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Solution

The fourth proportional to 8,901.74, 13,346.46 and 3,901.72 is: 5,849.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901.74 : 13,346.46 = 3,901.72 : x
  2. Step 2: Convert to fraction form
    8,901.74/13,346.46 = 3,901.72/x
  3. Step 3: Cross multiply
    8,901.74x = 13,346.46 × 3,901.72
  4. Step 4: Simplify right side
    8,901.74x = 52,074,083.18
  5. Step 5: Solve for x
    x = 52,074,083.18/8,901.74
  6. Step 6: Final answer
    x = 5,849.88

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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.