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Finding the Fourth Proportional to 8,751.67, 13,122.23 and 3,487.50

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Solution

The fourth proportional to 8,751.67, 13,122.23 and 3,487.50 is: 5,229.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.67 : 13,122.23 = 3,487.50 : x
  2. Step 2: Convert to fraction form
    8,751.67/13,122.23 = 3,487.50/x
  3. Step 3: Cross multiply
    8,751.67x = 13,122.23 × 3,487.50
  4. Step 4: Simplify right side
    8,751.67x = 45,763,777.13
  5. Step 5: Solve for x
    x = 45,763,777.13/8,751.67
  6. Step 6: Final answer
    x = 5,229.15

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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.