Home / 18,180.94-25,091.01-11,108.71

Finding the Fourth Proportional to 18,180.94, 25,091.01 and 11,108.71

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Solution

The fourth proportional to 18,180.94, 25,091.01 and 11,108.71 is: 15,330.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,180.94 : 25,091.01 = 11,108.71 : x
  2. Step 2: Convert to fraction form
    18,180.94/25,091.01 = 11,108.71/x
  3. Step 3: Cross multiply
    18,180.94x = 25,091.01 × 11,108.71
  4. Step 4: Simplify right side
    18,180.94x = 278,728,753.70
  5. Step 5: Solve for x
    x = 278,728,753.70/18,180.94
  6. Step 6: Final answer
    x = 15,330.82

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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.