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Finding the Fourth Proportional to 10,988.87, 15,169.88 and 6,272.24

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Solution

The fourth proportional to 10,988.87, 15,169.88 and 6,272.24 is: 8,658.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.87 : 15,169.88 = 6,272.24 : x
  2. Step 2: Convert to fraction form
    10,988.87/15,169.88 = 6,272.24/x
  3. Step 3: Cross multiply
    10,988.87x = 15,169.88 × 6,272.24
  4. Step 4: Simplify right side
    10,988.87x = 95,149,067.96
  5. Step 5: Solve for x
    x = 95,149,067.96/10,988.87
  6. Step 6: Final answer
    x = 8,658.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.