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Finding the Fourth Proportional to 9,243.90, 12,755.60 and 5,467.20

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Solution

The fourth proportional to 9,243.90, 12,755.60 and 5,467.20 is: 7,544.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,243.90 : 12,755.60 = 5,467.20 : x
  2. Step 2: Convert to fraction form
    9,243.90/12,755.60 = 5,467.20/x
  3. Step 3: Cross multiply
    9,243.90x = 12,755.60 × 5,467.20
  4. Step 4: Simplify right side
    9,243.90x = 69,737,388.98
  5. Step 5: Solve for x
    x = 69,737,388.98/9,243.90
  6. Step 6: Final answer
    x = 7,544.15

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