Home / 10,799.20-16,179.60-8,840.80

Finding the Fourth Proportional to 10,799.20, 16,179.60 and 8,840.80

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Solution

The fourth proportional to 10,799.20, 16,179.60 and 8,840.80 is: 13,245.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,799.20 : 16,179.60 = 8,840.80 : x
  2. Step 2: Convert to fraction form
    10,799.20/16,179.60 = 8,840.80/x
  3. Step 3: Cross multiply
    10,799.20x = 16,179.60 × 8,840.80
  4. Step 4: Simplify right side
    10,799.20x = 143,040,607.68
  5. Step 5: Solve for x
    x = 143,040,607.68/10,799.20
  6. Step 6: Final answer
    x = 13,245.48

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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.