Home / 11,067.20-16,600.80-4,140.80

Finding the Fourth Proportional to 11,067.20, 16,600.80 and 4,140.80

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Solution

The fourth proportional to 11,067.20, 16,600.80 and 4,140.80 is: 6,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,067.20 : 16,600.80 = 4,140.80 : x
  2. Step 2: Convert to fraction form
    11,067.20/16,600.80 = 4,140.80/x
  3. Step 3: Cross multiply
    11,067.20x = 16,600.80 × 4,140.80
  4. Step 4: Simplify right side
    11,067.20x = 68,740,592.64
  5. Step 5: Solve for x
    x = 68,740,592.64/11,067.20
  6. Step 6: Final answer
    x = 6,211.20

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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.