Home / 8,112.12-11,194.74-4,386.12

Finding the Fourth Proportional to 8,112.12, 11,194.74 and 4,386.12

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Solution

The fourth proportional to 8,112.12, 11,194.74 and 4,386.12 is: 6,052.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.12 : 11,194.74 = 4,386.12 : x
  2. Step 2: Convert to fraction form
    8,112.12/11,194.74 = 4,386.12/x
  3. Step 3: Cross multiply
    8,112.12x = 11,194.74 × 4,386.12
  4. Step 4: Simplify right side
    8,112.12x = 49,101,473.01
  5. Step 5: Solve for x
    x = 49,101,473.01/8,112.12
  6. Step 6: Final answer
    x = 6,052.85

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Half scale
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Double scale
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Similar ratio
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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.