Home / 12,481.26-18,716.72-5,080.70

Finding the Fourth Proportional to 12,481.26, 18,716.72 and 5,080.70

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Solution

The fourth proportional to 12,481.26, 18,716.72 and 5,080.70 is: 7,618.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.26 : 18,716.72 = 5,080.70 : x
  2. Step 2: Convert to fraction form
    12,481.26/18,716.72 = 5,080.70/x
  3. Step 3: Cross multiply
    12,481.26x = 18,716.72 × 5,080.70
  4. Step 4: Simplify right side
    12,481.26x = 95,093,920.32
  5. Step 5: Solve for x
    x = 95,093,920.32/12,481.26
  6. Step 6: Final answer
    x = 7,618.94

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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.