Home / 18,229.89-25,168.17-11,953.20

Finding the Fourth Proportional to 18,229.89, 25,168.17 and 11,953.20

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Solution

The fourth proportional to 18,229.89, 25,168.17 and 11,953.20 is: 16,502.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,229.89 : 25,168.17 = 11,953.20 : x
  2. Step 2: Convert to fraction form
    18,229.89/25,168.17 = 11,953.20/x
  3. Step 3: Cross multiply
    18,229.89x = 25,168.17 × 11,953.20
  4. Step 4: Simplify right side
    18,229.89x = 300,840,169.64
  5. Step 5: Solve for x
    x = 300,840,169.64/18,229.89
  6. Step 6: Final answer
    x = 16,502.58

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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.