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Finding the Fourth Proportional to 8,242.03, 12,352.37 and 5,279.33

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Solution

The fourth proportional to 8,242.03, 12,352.37 and 5,279.33 is: 7,912.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,242.03 : 12,352.37 = 5,279.33 : x
  2. Step 2: Convert to fraction form
    8,242.03/12,352.37 = 5,279.33/x
  3. Step 3: Cross multiply
    8,242.03x = 12,352.37 × 5,279.33
  4. Step 4: Simplify right side
    8,242.03x = 65,212,217.06
  5. Step 5: Solve for x
    x = 65,212,217.06/8,242.03
  6. Step 6: Final answer
    x = 7,912.16

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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.