Home / 10,613.88-15,921.14-5,067.81

Finding the Fourth Proportional to 10,613.88, 15,921.14 and 5,067.81

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Solution

The fourth proportional to 10,613.88, 15,921.14 and 5,067.81 is: 7,601.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,613.88 : 15,921.14 = 5,067.81 : x
  2. Step 2: Convert to fraction form
    10,613.88/15,921.14 = 5,067.81/x
  3. Step 3: Cross multiply
    10,613.88x = 15,921.14 × 5,067.81
  4. Step 4: Simplify right side
    10,613.88x = 80,685,287.16
  5. Step 5: Solve for x
    x = 80,685,287.16/10,613.88
  6. Step 6: Final answer
    x = 7,601.87

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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.