Home / 11,412.91-17,121.89-3,516.13

Finding the Fourth Proportional to 11,412.91, 17,121.89 and 3,516.13

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Solution

The fourth proportional to 11,412.91, 17,121.89 and 3,516.13 is: 5,274.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,412.91 : 17,121.89 = 3,516.13 : x
  2. Step 2: Convert to fraction form
    11,412.91/17,121.89 = 3,516.13/x
  3. Step 3: Cross multiply
    11,412.91x = 17,121.89 × 3,516.13
  4. Step 4: Simplify right side
    11,412.91x = 60,202,791.09
  5. Step 5: Solve for x
    x = 60,202,791.09/11,412.91
  6. Step 6: Final answer
    x = 5,274.97

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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.