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Finding the Fourth Proportional to 7,994.28, 11,992.16 and 3,836.28

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Solution

The fourth proportional to 7,994.28, 11,992.16 and 3,836.28 is: 5,754.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.28 : 11,992.16 = 3,836.28 : x
  2. Step 2: Convert to fraction form
    7,994.28/11,992.16 = 3,836.28/x
  3. Step 3: Cross multiply
    7,994.28x = 11,992.16 × 3,836.28
  4. Step 4: Simplify right side
    7,994.28x = 46,005,283.56
  5. Step 5: Solve for x
    x = 46,005,283.56/7,994.28
  6. Step 6: Final answer
    x = 5,754.78

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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.