Home / 11,770.38-17,656.38-3,979.80

Finding the Fourth Proportional to 11,770.38, 17,656.38 and 3,979.80

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Solution

The fourth proportional to 11,770.38, 17,656.38 and 3,979.80 is: 5,969.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,770.38 : 17,656.38 = 3,979.80 : x
  2. Step 2: Convert to fraction form
    11,770.38/17,656.38 = 3,979.80/x
  3. Step 3: Cross multiply
    11,770.38x = 17,656.38 × 3,979.80
  4. Step 4: Simplify right side
    11,770.38x = 70,268,861.12
  5. Step 5: Solve for x
    x = 70,268,861.12/11,770.38
  6. Step 6: Final answer
    x = 5,969.97

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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.