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Finding the Fourth Proportional to 11,542.90, 17,302.20 and 4,520.20

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Solution

The fourth proportional to 11,542.90, 17,302.20 and 4,520.20 is: 6,775.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,542.90 : 17,302.20 = 4,520.20 : x
  2. Step 2: Convert to fraction form
    11,542.90/17,302.20 = 4,520.20/x
  3. Step 3: Cross multiply
    11,542.90x = 17,302.20 × 4,520.20
  4. Step 4: Simplify right side
    11,542.90x = 78,209,404.44
  5. Step 5: Solve for x
    x = 78,209,404.44/11,542.90
  6. Step 6: Final answer
    x = 6,775.54

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.