Home / 18,694.10-28,046.45-7,608.75

Finding the Fourth Proportional to 18,694.10, 28,046.45 and 7,608.75

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Solution

The fourth proportional to 18,694.10, 28,046.45 and 7,608.75 is: 11,415.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,694.10 : 28,046.45 = 7,608.75 : x
  2. Step 2: Convert to fraction form
    18,694.10/28,046.45 = 7,608.75/x
  3. Step 3: Cross multiply
    18,694.10x = 28,046.45 × 7,608.75
  4. Step 4: Simplify right side
    18,694.10x = 213,398,379.73
  5. Step 5: Solve for x
    x = 213,398,379.73/18,694.10
  6. Step 6: Final answer
    x = 11,415.28

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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.