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Finding the Fourth Proportional to 18,116.44, 27,174.66 and 11,959

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Solution

The fourth proportional to 18,116.44, 27,174.66 and 11,959 is: 17,938.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,116.44 : 27,174.66 = 11,959 : x
  2. Step 2: Convert to fraction form
    18,116.44/27,174.66 = 11,959/x
  3. Step 3: Cross multiply
    18,116.44x = 27,174.66 × 11,959
  4. Step 4: Simplify right side
    18,116.44x = 324,981,758.94
  5. Step 5: Solve for x
    x = 324,981,758.94/18,116.44
  6. Step 6: Final answer
    x = 17,938.50

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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.