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Finding the Fourth Proportional to 8,752.81, 13,125.87 and 3,754.72

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Solution

The fourth proportional to 8,752.81, 13,125.87 and 3,754.72 is: 5,630.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.81 : 13,125.87 = 3,754.72 : x
  2. Step 2: Convert to fraction form
    8,752.81/13,125.87 = 3,754.72/x
  3. Step 3: Cross multiply
    8,752.81x = 13,125.87 × 3,754.72
  4. Step 4: Simplify right side
    8,752.81x = 49,283,966.61
  5. Step 5: Solve for x
    x = 49,283,966.61/8,752.81
  6. Step 6: Final answer
    x = 5,630.65

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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.