Home / 18,319.44-27,481.36-6,470.78

Finding the Fourth Proportional to 18,319.44, 27,481.36 and 6,470.78

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Solution

The fourth proportional to 18,319.44, 27,481.36 and 6,470.78 is: 9,706.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319.44 : 27,481.36 = 6,470.78 : x
  2. Step 2: Convert to fraction form
    18,319.44/27,481.36 = 6,470.78/x
  3. Step 3: Cross multiply
    18,319.44x = 27,481.36 × 6,470.78
  4. Step 4: Simplify right side
    18,319.44x = 177,825,834.66
  5. Step 5: Solve for x
    x = 177,825,834.66/18,319.44
  6. Step 6: Final answer
    x = 9,706.95

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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.