Home / 7,982.85-11,016.32-4,627.60

Finding the Fourth Proportional to 7,982.85, 11,016.32 and 4,627.60

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Solution

The fourth proportional to 7,982.85, 11,016.32 and 4,627.60 is: 6,386.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.85 : 11,016.32 = 4,627.60 : x
  2. Step 2: Convert to fraction form
    7,982.85/11,016.32 = 4,627.60/x
  3. Step 3: Cross multiply
    7,982.85x = 11,016.32 × 4,627.60
  4. Step 4: Simplify right side
    7,982.85x = 50,979,161.54
  5. Step 5: Solve for x
    x = 50,979,161.54/7,982.85
  6. Step 6: Final answer
    x = 6,386.09

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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.