Home / 10,161.92-15,243.15-2,766.53

Finding the Fourth Proportional to 10,161.92, 15,243.15 and 2,766.53

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Solution

The fourth proportional to 10,161.92, 15,243.15 and 2,766.53 is: 4,149.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,161.92 : 15,243.15 = 2,766.53 : x
  2. Step 2: Convert to fraction form
    10,161.92/15,243.15 = 2,766.53/x
  3. Step 3: Cross multiply
    10,161.92x = 15,243.15 × 2,766.53
  4. Step 4: Simplify right side
    10,161.92x = 42,170,680.25
  5. Step 5: Solve for x
    x = 42,170,680.25/10,161.92
  6. Step 6: Final answer
    x = 4,149.87

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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.