Home / 15,010.24-20,711.28-9,418.72

Finding the Fourth Proportional to 15,010.24, 20,711.28 and 9,418.72

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Solution

The fourth proportional to 15,010.24, 20,711.28 and 9,418.72 is: 12,996.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,010.24 : 20,711.28 = 9,418.72 : x
  2. Step 2: Convert to fraction form
    15,010.24/20,711.28 = 9,418.72/x
  3. Step 3: Cross multiply
    15,010.24x = 20,711.28 × 9,418.72
  4. Step 4: Simplify right side
    15,010.24x = 195,073,747.16
  5. Step 5: Solve for x
    x = 195,073,747.16/15,010.24
  6. Step 6: Final answer
    x = 12,996.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.