Home / 8,129.50-12,194.25-2,286.11

Finding the Fourth Proportional to 8,129.50, 12,194.25 and 2,286.11

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Solution

The fourth proportional to 8,129.50, 12,194.25 and 2,286.11 is: 3,429.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.50 : 12,194.25 = 2,286.11 : x
  2. Step 2: Convert to fraction form
    8,129.50/12,194.25 = 2,286.11/x
  3. Step 3: Cross multiply
    8,129.50x = 12,194.25 × 2,286.11
  4. Step 4: Simplify right side
    8,129.50x = 27,877,390.20
  5. Step 5: Solve for x
    x = 27,877,390.20/8,129.50
  6. Step 6: Final answer
    x = 3,429.17

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.