Home / 18,568.91-27,850.38-5,418.20

Finding the Fourth Proportional to 18,568.91, 27,850.38 and 5,418.20

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Solution

The fourth proportional to 18,568.91, 27,850.38 and 5,418.20 is: 8,126.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,568.91 : 27,850.38 = 5,418.20 : x
  2. Step 2: Convert to fraction form
    18,568.91/27,850.38 = 5,418.20/x
  3. Step 3: Cross multiply
    18,568.91x = 27,850.38 × 5,418.20
  4. Step 4: Simplify right side
    18,568.91x = 150,898,928.92
  5. Step 5: Solve for x
    x = 150,898,928.92/18,568.91
  6. Step 6: Final answer
    x = 8,126.43

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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.