Home / 18,616.32-25,687.44-11,067.12

Finding the Fourth Proportional to 18,616.32, 25,687.44 and 11,067.12

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Solution

The fourth proportional to 18,616.32, 25,687.44 and 11,067.12 is: 15,270.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,616.32 : 25,687.44 = 11,067.12 : x
  2. Step 2: Convert to fraction form
    18,616.32/25,687.44 = 11,067.12/x
  3. Step 3: Cross multiply
    18,616.32x = 25,687.44 × 11,067.12
  4. Step 4: Simplify right side
    18,616.32x = 284,285,980.97
  5. Step 5: Solve for x
    x = 284,285,980.97/18,616.32
  6. Step 6: Final answer
    x = 15,270.79

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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.