Home / 8,129.47-12,194.21-2,286.13

Finding the Fourth Proportional to 8,129.47, 12,194.21 and 2,286.13

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Solution

The fourth proportional to 8,129.47, 12,194.21 and 2,286.13 is: 3,429.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.47 : 12,194.21 = 2,286.13 : x
  2. Step 2: Convert to fraction form
    8,129.47/12,194.21 = 2,286.13/x
  3. Step 3: Cross multiply
    8,129.47x = 12,194.21 × 2,286.13
  4. Step 4: Simplify right side
    8,129.47x = 27,877,549.31
  5. Step 5: Solve for x
    x = 27,877,549.31/8,129.47
  6. Step 6: Final answer
    x = 3,429.20

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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.