Home / 8,418.27-11,613.42-5,726.19

Finding the Fourth Proportional to 8,418.27, 11,613.42 and 5,726.19

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Solution

The fourth proportional to 8,418.27, 11,613.42 and 5,726.19 is: 7,899.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.27 : 11,613.42 = 5,726.19 : x
  2. Step 2: Convert to fraction form
    8,418.27/11,613.42 = 5,726.19/x
  3. Step 3: Cross multiply
    8,418.27x = 11,613.42 × 5,726.19
  4. Step 4: Simplify right side
    8,418.27x = 66,500,649.47
  5. Step 5: Solve for x
    x = 66,500,649.47/8,418.27
  6. Step 6: Final answer
    x = 7,899.56

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.