Home / 18,144.96-25,039.20-10,691.52

Finding the Fourth Proportional to 18,144.96, 25,039.20 and 10,691.52

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Solution

The fourth proportional to 18,144.96, 25,039.20 and 10,691.52 is: 14,753.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144.96 : 25,039.20 = 10,691.52 : x
  2. Step 2: Convert to fraction form
    18,144.96/25,039.20 = 10,691.52/x
  3. Step 3: Cross multiply
    18,144.96x = 25,039.20 × 10,691.52
  4. Step 4: Simplify right side
    18,144.96x = 267,707,107.58
  5. Step 5: Solve for x
    x = 267,707,107.58/18,144.96
  6. Step 6: Final answer
    x = 14,753.80

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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.