Home / 10,161.24-15,231.39-5,769.42

Finding the Fourth Proportional to 10,161.24, 15,231.39 and 5,769.42

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Solution

The fourth proportional to 10,161.24, 15,231.39 and 5,769.42 is: 8,648.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,161.24 : 15,231.39 = 5,769.42 : x
  2. Step 2: Convert to fraction form
    10,161.24/15,231.39 = 5,769.42/x
  3. Step 3: Cross multiply
    10,161.24x = 15,231.39 × 5,769.42
  4. Step 4: Simplify right side
    10,161.24x = 87,876,286.09
  5. Step 5: Solve for x
    x = 87,876,286.09/10,161.24
  6. Step 6: Final answer
    x = 8,648.19

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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.