Home / 18,087.54-27,131.01-4,939.86

Finding the Fourth Proportional to 18,087.54, 27,131.01 and 4,939.86

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Solution

The fourth proportional to 18,087.54, 27,131.01 and 4,939.86 is: 7,409.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.54 : 27,131.01 = 4,939.86 : x
  2. Step 2: Convert to fraction form
    18,087.54/27,131.01 = 4,939.86/x
  3. Step 3: Cross multiply
    18,087.54x = 27,131.01 × 4,939.86
  4. Step 4: Simplify right side
    18,087.54x = 134,023,391.06
  5. Step 5: Solve for x
    x = 134,023,391.06/18,087.54
  6. Step 6: Final answer
    x = 7,409.71

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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.