Home / 12,375.20-18,564.48-3,610.04

Finding the Fourth Proportional to 12,375.20, 18,564.48 and 3,610.04

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Solution

The fourth proportional to 12,375.20, 18,564.48 and 3,610.04 is: 5,415.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,375.20 : 18,564.48 = 3,610.04 : x
  2. Step 2: Convert to fraction form
    12,375.20/18,564.48 = 3,610.04/x
  3. Step 3: Cross multiply
    12,375.20x = 18,564.48 × 3,610.04
  4. Step 4: Simplify right side
    12,375.20x = 67,018,515.38
  5. Step 5: Solve for x
    x = 67,018,515.38/12,375.20
  6. Step 6: Final answer
    x = 5,415.55

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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.