Home / 18,891.12-26,067-11,335.92

Finding the Fourth Proportional to 18,891.12, 26,067 and 11,335.92

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Solution

The fourth proportional to 18,891.12, 26,067 and 11,335.92 is: 15,641.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,891.12 : 26,067 = 11,335.92 : x
  2. Step 2: Convert to fraction form
    18,891.12/26,067 = 11,335.92/x
  3. Step 3: Cross multiply
    18,891.12x = 26,067 × 11,335.92
  4. Step 4: Simplify right side
    18,891.12x = 295,493,426.64
  5. Step 5: Solve for x
    x = 295,493,426.64/18,891.12
  6. Step 6: Final answer
    x = 15,641.92

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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.