Home / 18,319.60-27,481.14-4,992.76

Finding the Fourth Proportional to 18,319.60, 27,481.14 and 4,992.76

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Solution

The fourth proportional to 18,319.60, 27,481.14 and 4,992.76 is: 7,489.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319.60 : 27,481.14 = 4,992.76 : x
  2. Step 2: Convert to fraction form
    18,319.60/27,481.14 = 4,992.76/x
  3. Step 3: Cross multiply
    18,319.60x = 27,481.14 × 4,992.76
  4. Step 4: Simplify right side
    18,319.60x = 137,206,736.55
  5. Step 5: Solve for x
    x = 137,206,736.55/18,319.60
  6. Step 6: Final answer
    x = 7,489.61

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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.