Home / 8,104.69-11,186.57-5,279.11

Finding the Fourth Proportional to 8,104.69, 11,186.57 and 5,279.11

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Solution

The fourth proportional to 8,104.69, 11,186.57 and 5,279.11 is: 7,286.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,104.69 : 11,186.57 = 5,279.11 : x
  2. Step 2: Convert to fraction form
    8,104.69/11,186.57 = 5,279.11/x
  3. Step 3: Cross multiply
    8,104.69x = 11,186.57 × 5,279.11
  4. Step 4: Simplify right side
    8,104.69x = 59,055,118.78
  5. Step 5: Solve for x
    x = 59,055,118.78/8,104.69
  6. Step 6: Final answer
    x = 7,286.54

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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.