Home / 11,299.97-16,949.25-2,979.80

Finding the Fourth Proportional to 11,299.97, 16,949.25 and 2,979.80

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Solution

The fourth proportional to 11,299.97, 16,949.25 and 2,979.80 is: 4,469.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,299.97 : 16,949.25 = 2,979.80 : x
  2. Step 2: Convert to fraction form
    11,299.97/16,949.25 = 2,979.80/x
  3. Step 3: Cross multiply
    11,299.97x = 16,949.25 × 2,979.80
  4. Step 4: Simplify right side
    11,299.97x = 50,505,290.40
  5. Step 5: Solve for x
    x = 50,505,290.40/11,299.97
  6. Step 6: Final answer
    x = 4,469.51

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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.