Home / 10,517.12-15,778.14-3,496.88

Finding the Fourth Proportional to 10,517.12, 15,778.14 and 3,496.88

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Solution

The fourth proportional to 10,517.12, 15,778.14 and 3,496.88 is: 5,246.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,517.12 : 15,778.14 = 3,496.88 : x
  2. Step 2: Convert to fraction form
    10,517.12/15,778.14 = 3,496.88/x
  3. Step 3: Cross multiply
    10,517.12x = 15,778.14 × 3,496.88
  4. Step 4: Simplify right side
    10,517.12x = 55,174,262.20
  5. Step 5: Solve for x
    x = 55,174,262.20/10,517.12
  6. Step 6: Final answer
    x = 5,246.14

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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.