Home / 11,067.80-16,601.70-8,443.40

Finding the Fourth Proportional to 11,067.80, 16,601.70 and 8,443.40

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Solution

The fourth proportional to 11,067.80, 16,601.70 and 8,443.40 is: 12,665.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,067.80 : 16,601.70 = 8,443.40 : x
  2. Step 2: Convert to fraction form
    11,067.80/16,601.70 = 8,443.40/x
  3. Step 3: Cross multiply
    11,067.80x = 16,601.70 × 8,443.40
  4. Step 4: Simplify right side
    11,067.80x = 140,174,793.78
  5. Step 5: Solve for x
    x = 140,174,793.78/11,067.80
  6. Step 6: Final answer
    x = 12,665.10

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Similar ratio
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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.