Home / 13,906.59-20,862.60-6,115.38

Finding the Fourth Proportional to 13,906.59, 20,862.60 and 6,115.38

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Solution

The fourth proportional to 13,906.59, 20,862.60 and 6,115.38 is: 9,174.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906.59 : 20,862.60 = 6,115.38 : x
  2. Step 2: Convert to fraction form
    13,906.59/20,862.60 = 6,115.38/x
  3. Step 3: Cross multiply
    13,906.59x = 20,862.60 × 6,115.38
  4. Step 4: Simplify right side
    13,906.59x = 127,582,726.79
  5. Step 5: Solve for x
    x = 127,582,726.79/13,906.59
  6. Step 6: Final answer
    x = 9,174.26

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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.