Home / 13,949.01-19,240.94-9,169.20

Finding the Fourth Proportional to 13,949.01, 19,240.94 and 9,169.20

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Solution

The fourth proportional to 13,949.01, 19,240.94 and 9,169.20 is: 12,647.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.01 : 19,240.94 = 9,169.20 : x
  2. Step 2: Convert to fraction form
    13,949.01/19,240.94 = 9,169.20/x
  3. Step 3: Cross multiply
    13,949.01x = 19,240.94 × 9,169.20
  4. Step 4: Simplify right side
    13,949.01x = 176,424,049.97
  5. Step 5: Solve for x
    x = 176,424,049.97/13,949.01
  6. Step 6: Final answer
    x = 12,647.78

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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.