Home / 18,694.13-28,046.50-7,608.78

Finding the Fourth Proportional to 18,694.13, 28,046.50 and 7,608.78

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Solution

The fourth proportional to 18,694.13, 28,046.50 and 7,608.78 is: 11,415.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,694.13 : 28,046.50 = 7,608.78 : x
  2. Step 2: Convert to fraction form
    18,694.13/28,046.50 = 7,608.78/x
  3. Step 3: Cross multiply
    18,694.13x = 28,046.50 × 7,608.78
  4. Step 4: Simplify right side
    18,694.13x = 213,399,469.99
  5. Step 5: Solve for x
    x = 213,399,469.99/18,694.13
  6. Step 6: Final answer
    x = 11,415.32

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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.