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Finding the Fourth Proportional to 13,552.23, 18,702.66 and 8,379.24

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Solution

The fourth proportional to 13,552.23, 18,702.66 and 8,379.24 is: 11,563.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,552.23 : 18,702.66 = 8,379.24 : x
  2. Step 2: Convert to fraction form
    13,552.23/18,702.66 = 8,379.24/x
  3. Step 3: Cross multiply
    13,552.23x = 18,702.66 × 8,379.24
  4. Step 4: Simplify right side
    13,552.23x = 156,714,076.78
  5. Step 5: Solve for x
    x = 156,714,076.78/13,552.23
  6. Step 6: Final answer
    x = 11,563.71

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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.