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Finding the Fourth Proportional to 8,496.56, 12,749.21 and 3,819.81

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Solution

The fourth proportional to 8,496.56, 12,749.21 and 3,819.81 is: 5,731.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,496.56 : 12,749.21 = 3,819.81 : x
  2. Step 2: Convert to fraction form
    8,496.56/12,749.21 = 3,819.81/x
  3. Step 3: Cross multiply
    8,496.56x = 12,749.21 × 3,819.81
  4. Step 4: Simplify right side
    8,496.56x = 48,699,540.75
  5. Step 5: Solve for x
    x = 48,699,540.75/8,496.56
  6. Step 6: Final answer
    x = 5,731.68

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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.