Home / 18,481.37-27,728.94-11,091.13

Finding the Fourth Proportional to 18,481.37, 27,728.94 and 11,091.13

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Solution

The fourth proportional to 18,481.37, 27,728.94 and 11,091.13 is: 16,640.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,481.37 : 27,728.94 = 11,091.13 : x
  2. Step 2: Convert to fraction form
    18,481.37/27,728.94 = 11,091.13/x
  3. Step 3: Cross multiply
    18,481.37x = 27,728.94 × 11,091.13
  4. Step 4: Simplify right side
    18,481.37x = 307,545,278.30
  5. Step 5: Solve for x
    x = 307,545,278.30/18,481.37
  6. Step 6: Final answer
    x = 16,640.83

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1.5x scale

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.