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Finding the Fourth Proportional to 7,994.34, 11,991.06 and 2,447.69

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Solution

The fourth proportional to 7,994.34, 11,991.06 and 2,447.69 is: 3,671.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.34 : 11,991.06 = 2,447.69 : x
  2. Step 2: Convert to fraction form
    7,994.34/11,991.06 = 2,447.69/x
  3. Step 3: Cross multiply
    7,994.34x = 11,991.06 × 2,447.69
  4. Step 4: Simplify right side
    7,994.34x = 29,350,337.70
  5. Step 5: Solve for x
    x = 29,350,337.70/7,994.34
  6. Step 6: Final answer
    x = 3,671.39

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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.