Home / 13,610.22-20,375.68-10,115.70

Finding the Fourth Proportional to 13,610.22, 20,375.68 and 10,115.70

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Solution

The fourth proportional to 13,610.22, 20,375.68 and 10,115.70 is: 15,144.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,610.22 : 20,375.68 = 10,115.70 : x
  2. Step 2: Convert to fraction form
    13,610.22/20,375.68 = 10,115.70/x
  3. Step 3: Cross multiply
    13,610.22x = 20,375.68 × 10,115.70
  4. Step 4: Simplify right side
    13,610.22x = 206,114,266.18
  5. Step 5: Solve for x
    x = 206,114,266.18/13,610.22
  6. Step 6: Final answer
    x = 15,144.08

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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.