Home / 10,151.25-15,229.31-3,225.75

Finding the Fourth Proportional to 10,151.25, 15,229.31 and 3,225.75

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Solution

The fourth proportional to 10,151.25, 15,229.31 and 3,225.75 is: 4,839.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,151.25 : 15,229.31 = 3,225.75 : x
  2. Step 2: Convert to fraction form
    10,151.25/15,229.31 = 3,225.75/x
  3. Step 3: Cross multiply
    10,151.25x = 15,229.31 × 3,225.75
  4. Step 4: Simplify right side
    10,151.25x = 49,125,930.60
  5. Step 5: Solve for x
    x = 49,125,930.60/10,151.25
  6. Step 6: Final answer
    x = 4,839.40

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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.