Home / 18,134.22-27,147.87-17,687.10

Finding the Fourth Proportional to 18,134.22, 27,147.87 and 17,687.10

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Solution

The fourth proportional to 18,134.22, 27,147.87 and 17,687.10 is: 26,478.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,134.22 : 27,147.87 = 17,687.10 : x
  2. Step 2: Convert to fraction form
    18,134.22/27,147.87 = 17,687.10/x
  3. Step 3: Cross multiply
    18,134.22x = 27,147.87 × 17,687.10
  4. Step 4: Simplify right side
    18,134.22x = 480,167,091.48
  5. Step 5: Solve for x
    x = 480,167,091.48/18,134.22
  6. Step 6: Final answer
    x = 26,478.51

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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.