Home / 12,754.38-19,128.11-8,067.35

Finding the Fourth Proportional to 12,754.38, 19,128.11 and 8,067.35

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Solution

The fourth proportional to 12,754.38, 19,128.11 and 8,067.35 is: 12,098.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,754.38 : 19,128.11 = 8,067.35 : x
  2. Step 2: Convert to fraction form
    12,754.38/19,128.11 = 8,067.35/x
  3. Step 3: Cross multiply
    12,754.38x = 19,128.11 × 8,067.35
  4. Step 4: Simplify right side
    12,754.38x = 154,313,022.23
  5. Step 5: Solve for x
    x = 154,313,022.23/12,754.38
  6. Step 6: Final answer
    x = 12,098.83

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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.