Home / 8,131.39-12,195.72-2,286.64

Finding the Fourth Proportional to 8,131.39, 12,195.72 and 2,286.64

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Solution

The fourth proportional to 8,131.39, 12,195.72 and 2,286.64 is: 3,429.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.39 : 12,195.72 = 2,286.64 : x
  2. Step 2: Convert to fraction form
    8,131.39/12,195.72 = 2,286.64/x
  3. Step 3: Cross multiply
    8,131.39x = 12,195.72 × 2,286.64
  4. Step 4: Simplify right side
    8,131.39x = 27,887,221.18
  5. Step 5: Solve for x
    x = 27,887,221.18/8,131.39
  6. Step 6: Final answer
    x = 3,429.58

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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.