Home / 8,129.51-12,194.25-2,286.12

Finding the Fourth Proportional to 8,129.51, 12,194.25 and 2,286.12

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Solution

The fourth proportional to 8,129.51, 12,194.25 and 2,286.12 is: 3,429.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.51 : 12,194.25 = 2,286.12 : x
  2. Step 2: Convert to fraction form
    8,129.51/12,194.25 = 2,286.12/x
  3. Step 3: Cross multiply
    8,129.51x = 12,194.25 × 2,286.12
  4. Step 4: Simplify right side
    8,129.51x = 27,877,518.81
  5. Step 5: Solve for x
    x = 27,877,518.81/8,129.51
  6. Step 6: Final answer
    x = 3,429.18

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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.