Home / 7,994.28-11,990.97-2,447.58

Finding the Fourth Proportional to 7,994.28, 11,990.97 and 2,447.58

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Solution

The fourth proportional to 7,994.28, 11,990.97 and 2,447.58 is: 3,671.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.28 : 11,990.97 = 2,447.58 : x
  2. Step 2: Convert to fraction form
    7,994.28/11,990.97 = 2,447.58/x
  3. Step 3: Cross multiply
    7,994.28x = 11,990.97 × 2,447.58
  4. Step 4: Simplify right side
    7,994.28x = 29,348,858.35
  5. Step 5: Solve for x
    x = 29,348,858.35/7,994.28
  6. Step 6: Final answer
    x = 3,671.23

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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.