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Finding the Fourth Proportional to 7,995.78, 11,994.24 and 2,728.66

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Solution

The fourth proportional to 7,995.78, 11,994.24 and 2,728.66 is: 4,093.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,995.78 : 11,994.24 = 2,728.66 : x
  2. Step 2: Convert to fraction form
    7,995.78/11,994.24 = 2,728.66/x
  3. Step 3: Cross multiply
    7,995.78x = 11,994.24 × 2,728.66
  4. Step 4: Simplify right side
    7,995.78x = 32,728,202.92
  5. Step 5: Solve for x
    x = 32,728,202.92/7,995.78
  6. Step 6: Final answer
    x = 4,093.18

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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.