Home / 7,982.78-11,016.56-4,445.97

Finding the Fourth Proportional to 7,982.78, 11,016.56 and 4,445.97

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Solution

The fourth proportional to 7,982.78, 11,016.56 and 4,445.97 is: 6,135.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.78 : 11,016.56 = 4,445.97 : x
  2. Step 2: Convert to fraction form
    7,982.78/11,016.56 = 4,445.97/x
  3. Step 3: Cross multiply
    7,982.78x = 11,016.56 × 4,445.97
  4. Step 4: Simplify right side
    7,982.78x = 48,979,273.03
  5. Step 5: Solve for x
    x = 48,979,273.03/7,982.78
  6. Step 6: Final answer
    x = 6,135.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.