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Finding the Fourth Proportional to 14,819.85, 20,450.63 and 8,104.17

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Solution

The fourth proportional to 14,819.85, 20,450.63 and 8,104.17 is: 11,183.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,819.85 : 20,450.63 = 8,104.17 : x
  2. Step 2: Convert to fraction form
    14,819.85/20,450.63 = 8,104.17/x
  3. Step 3: Cross multiply
    14,819.85x = 20,450.63 × 8,104.17
  4. Step 4: Simplify right side
    14,819.85x = 165,735,341.61
  5. Step 5: Solve for x
    x = 165,735,341.61/14,819.85
  6. Step 6: Final answer
    x = 11,183.33

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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.