Home / 13,591.74-20,387.64-3,731.06

Finding the Fourth Proportional to 13,591.74, 20,387.64 and 3,731.06

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Solution

The fourth proportional to 13,591.74, 20,387.64 and 3,731.06 is: 5,596.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.74 : 20,387.64 = 3,731.06 : x
  2. Step 2: Convert to fraction form
    13,591.74/20,387.64 = 3,731.06/x
  3. Step 3: Cross multiply
    13,591.74x = 20,387.64 × 3,731.06
  4. Step 4: Simplify right side
    13,591.74x = 76,067,508.10
  5. Step 5: Solve for x
    x = 76,067,508.10/13,591.74
  6. Step 6: Final answer
    x = 5,596.60

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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.