Home / 8,112.39-11,195.15-4,755.27

Finding the Fourth Proportional to 8,112.39, 11,195.15 and 4,755.27

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Solution

The fourth proportional to 8,112.39, 11,195.15 and 4,755.27 is: 6,562.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.39 : 11,195.15 = 4,755.27 : x
  2. Step 2: Convert to fraction form
    8,112.39/11,195.15 = 4,755.27/x
  3. Step 3: Cross multiply
    8,112.39x = 11,195.15 × 4,755.27
  4. Step 4: Simplify right side
    8,112.39x = 53,235,979.15
  5. Step 5: Solve for x
    x = 53,235,979.15/8,112.39
  6. Step 6: Final answer
    x = 6,562.31

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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.