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Finding the Fourth Proportional to 7,994.47, 11,991.67 and 2,447.85

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Solution

The fourth proportional to 7,994.47, 11,991.67 and 2,447.85 is: 3,671.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.47 : 11,991.67 = 2,447.85 : x
  2. Step 2: Convert to fraction form
    7,994.47/11,991.67 = 2,447.85/x
  3. Step 3: Cross multiply
    7,994.47x = 11,991.67 × 2,447.85
  4. Step 4: Simplify right side
    7,994.47x = 29,353,753.96
  5. Step 5: Solve for x
    x = 29,353,753.96/7,994.47
  6. Step 6: Final answer
    x = 3,671.76

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Similar ratio
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1.5x scale

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.