Home / 12,517.22-18,773.11-3,749.78

Finding the Fourth Proportional to 12,517.22, 18,773.11 and 3,749.78

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Solution

The fourth proportional to 12,517.22, 18,773.11 and 3,749.78 is: 5,623.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,517.22 : 18,773.11 = 3,749.78 : x
  2. Step 2: Convert to fraction form
    12,517.22/18,773.11 = 3,749.78/x
  3. Step 3: Cross multiply
    12,517.22x = 18,773.11 × 3,749.78
  4. Step 4: Simplify right side
    12,517.22x = 70,395,032.42
  5. Step 5: Solve for x
    x = 70,395,032.42/12,517.22
  6. Step 6: Final answer
    x = 5,623.86

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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.