Home / 10,252.80-15,375.60-3,679.20

Finding the Fourth Proportional to 10,252.80, 15,375.60 and 3,679.20

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Solution

The fourth proportional to 10,252.80, 15,375.60 and 3,679.20 is: 5,517.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,252.80 : 15,375.60 = 3,679.20 : x
  2. Step 2: Convert to fraction form
    10,252.80/15,375.60 = 3,679.20/x
  3. Step 3: Cross multiply
    10,252.80x = 15,375.60 × 3,679.20
  4. Step 4: Simplify right side
    10,252.80x = 56,569,907.52
  5. Step 5: Solve for x
    x = 56,569,907.52/10,252.80
  6. Step 6: Final answer
    x = 5,517.51

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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.