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Finding the Fourth Proportional to 13,755.55, 20,630 and 6,352.89

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Solution

The fourth proportional to 13,755.55, 20,630 and 6,352.89 is: 9,527.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.55 : 20,630 = 6,352.89 : x
  2. Step 2: Convert to fraction form
    13,755.55/20,630 = 6,352.89/x
  3. Step 3: Cross multiply
    13,755.55x = 20,630 × 6,352.89
  4. Step 4: Simplify right side
    13,755.55x = 131,060,120.70
  5. Step 5: Solve for x
    x = 131,060,120.70/13,755.55
  6. Step 6: Final answer
    x = 9,527.80

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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.