Home / 10,517.27-15,771.28-3,938.84

Finding the Fourth Proportional to 10,517.27, 15,771.28 and 3,938.84

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Solution

The fourth proportional to 10,517.27, 15,771.28 and 3,938.84 is: 5,906.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,517.27 : 15,771.28 = 3,938.84 : x
  2. Step 2: Convert to fraction form
    10,517.27/15,771.28 = 3,938.84/x
  3. Step 3: Cross multiply
    10,517.27x = 15,771.28 × 3,938.84
  4. Step 4: Simplify right side
    10,517.27x = 62,120,449.96
  5. Step 5: Solve for x
    x = 62,120,449.96/10,517.27
  6. Step 6: Final answer
    x = 5,906.52

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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.