Home / 10,987.47-16,481.09-3,591.96

Finding the Fourth Proportional to 10,987.47, 16,481.09 and 3,591.96

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Solution

The fourth proportional to 10,987.47, 16,481.09 and 3,591.96 is: 5,387.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987.47 : 16,481.09 = 3,591.96 : x
  2. Step 2: Convert to fraction form
    10,987.47/16,481.09 = 3,591.96/x
  3. Step 3: Cross multiply
    10,987.47x = 16,481.09 × 3,591.96
  4. Step 4: Simplify right side
    10,987.47x = 59,199,398.08
  5. Step 5: Solve for x
    x = 59,199,398.08/10,987.47
  6. Step 6: Final answer
    x = 5,387.90

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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.