Home / 13,919.38-19,209.22-9,949.97

Finding the Fourth Proportional to 13,919.38, 19,209.22 and 9,949.97

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Solution

The fourth proportional to 13,919.38, 19,209.22 and 9,949.97 is: 13,731.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.38 : 19,209.22 = 9,949.97 : x
  2. Step 2: Convert to fraction form
    13,919.38/19,209.22 = 9,949.97/x
  3. Step 3: Cross multiply
    13,919.38x = 19,209.22 × 9,949.97
  4. Step 4: Simplify right side
    13,919.38x = 191,131,185.87
  5. Step 5: Solve for x
    x = 191,131,185.87/13,919.38
  6. Step 6: Final answer
    x = 13,731.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.