Home / 18,109.13-27,144.18-7,576.43

Finding the Fourth Proportional to 18,109.13, 27,144.18 and 7,576.43

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Solution

The fourth proportional to 18,109.13, 27,144.18 and 7,576.43 is: 11,356.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,109.13 : 27,144.18 = 7,576.43 : x
  2. Step 2: Convert to fraction form
    18,109.13/27,144.18 = 7,576.43/x
  3. Step 3: Cross multiply
    18,109.13x = 27,144.18 × 7,576.43
  4. Step 4: Simplify right side
    18,109.13x = 205,655,843.96
  5. Step 5: Solve for x
    x = 205,655,843.96/18,109.13
  6. Step 6: Final answer
    x = 11,356.48

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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.