Home / 18,067.28-27,078.33-8,705.54

Finding the Fourth Proportional to 18,067.28, 27,078.33 and 8,705.54

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Solution

The fourth proportional to 18,067.28, 27,078.33 and 8,705.54 is: 13,047.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,067.28 : 27,078.33 = 8,705.54 : x
  2. Step 2: Convert to fraction form
    18,067.28/27,078.33 = 8,705.54/x
  3. Step 3: Cross multiply
    18,067.28x = 27,078.33 × 8,705.54
  4. Step 4: Simplify right side
    18,067.28x = 235,731,484.95
  5. Step 5: Solve for x
    x = 235,731,484.95/18,067.28
  6. Step 6: Final answer
    x = 13,047.43

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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.