Home / 13,456.62-20,185.11-4,691.79

Finding the Fourth Proportional to 13,456.62, 20,185.11 and 4,691.79

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Solution

The fourth proportional to 13,456.62, 20,185.11 and 4,691.79 is: 7,037.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456.62 : 20,185.11 = 4,691.79 : x
  2. Step 2: Convert to fraction form
    13,456.62/20,185.11 = 4,691.79/x
  3. Step 3: Cross multiply
    13,456.62x = 20,185.11 × 4,691.79
  4. Step 4: Simplify right side
    13,456.62x = 94,704,297.25
  5. Step 5: Solve for x
    x = 94,704,297.25/13,456.62
  6. Step 6: Final answer
    x = 7,037.75

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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.