Home / 13,691.39-20,539.10-4,329.29

Finding the Fourth Proportional to 13,691.39, 20,539.10 and 4,329.29

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Solution

The fourth proportional to 13,691.39, 20,539.10 and 4,329.29 is: 6,494.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,691.39 : 20,539.10 = 4,329.29 : x
  2. Step 2: Convert to fraction form
    13,691.39/20,539.10 = 4,329.29/x
  3. Step 3: Cross multiply
    13,691.39x = 20,539.10 × 4,329.29
  4. Step 4: Simplify right side
    13,691.39x = 88,919,595.90
  5. Step 5: Solve for x
    x = 88,919,595.90/13,691.39
  6. Step 6: Final answer
    x = 6,494.57

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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.