Home / 8,047.28-12,067.96-2,780.96

Finding the Fourth Proportional to 8,047.28, 12,067.96 and 2,780.96

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Solution

The fourth proportional to 8,047.28, 12,067.96 and 2,780.96 is: 4,170.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,047.28 : 12,067.96 = 2,780.96 : x
  2. Step 2: Convert to fraction form
    8,047.28/12,067.96 = 2,780.96/x
  3. Step 3: Cross multiply
    8,047.28x = 12,067.96 × 2,780.96
  4. Step 4: Simplify right side
    8,047.28x = 33,560,514.04
  5. Step 5: Solve for x
    x = 33,560,514.04/8,047.28
  6. Step 6: Final answer
    x = 4,170.42

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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.