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Finding the Fourth Proportional to 8,770.86, 13,147.50 and 3,503.96

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Solution

The fourth proportional to 8,770.86, 13,147.50 and 3,503.96 is: 5,252.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.86 : 13,147.50 = 3,503.96 : x
  2. Step 2: Convert to fraction form
    8,770.86/13,147.50 = 3,503.96/x
  3. Step 3: Cross multiply
    8,770.86x = 13,147.50 × 3,503.96
  4. Step 4: Simplify right side
    8,770.86x = 46,068,314.10
  5. Step 5: Solve for x
    x = 46,068,314.10/8,770.86
  6. Step 6: Final answer
    x = 5,252.43

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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.