Home / 11,042.71-15,218.45-8,205.59

Finding the Fourth Proportional to 11,042.71, 15,218.45 and 8,205.59

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Solution

The fourth proportional to 11,042.71, 15,218.45 and 8,205.59 is: 11,308.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,042.71 : 15,218.45 = 8,205.59 : x
  2. Step 2: Convert to fraction form
    11,042.71/15,218.45 = 8,205.59/x
  3. Step 3: Cross multiply
    11,042.71x = 15,218.45 × 8,205.59
  4. Step 4: Simplify right side
    11,042.71x = 124,876,305.56
  5. Step 5: Solve for x
    x = 124,876,305.56/11,042.71
  6. Step 6: Final answer
    x = 11,308.49

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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.