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Finding the Fourth Proportional to 8,999, 13,505.46 and 6,245

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Solution

The fourth proportional to 8,999, 13,505.46 and 6,245 is: 9,372.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,999 : 13,505.46 = 6,245 : x
  2. Step 2: Convert to fraction form
    8,999/13,505.46 = 6,245/x
  3. Step 3: Cross multiply
    8,999x = 13,505.46 × 6,245
  4. Step 4: Simplify right side
    8,999x = 84,341,597.70
  5. Step 5: Solve for x
    x = 84,341,597.70/8,999
  6. Step 6: Final answer
    x = 9,372.33

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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.