Home / 18,147.38-27,231.50-7,616.44

Finding the Fourth Proportional to 18,147.38, 27,231.50 and 7,616.44

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Solution

The fourth proportional to 18,147.38, 27,231.50 and 7,616.44 is: 11,429.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147.38 : 27,231.50 = 7,616.44 : x
  2. Step 2: Convert to fraction form
    18,147.38/27,231.50 = 7,616.44/x
  3. Step 3: Cross multiply
    18,147.38x = 27,231.50 × 7,616.44
  4. Step 4: Simplify right side
    18,147.38x = 207,407,036.82
  5. Step 5: Solve for x
    x = 207,407,036.82/18,147.38
  6. Step 6: Final answer
    x = 11,429.03

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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.