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Finding the Fourth Proportional to 7,994.87, 11,993.40 and 2,728.47

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Solution

The fourth proportional to 7,994.87, 11,993.40 and 2,728.47 is: 4,093.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.87 : 11,993.40 = 2,728.47 : x
  2. Step 2: Convert to fraction form
    7,994.87/11,993.40 = 2,728.47/x
  3. Step 3: Cross multiply
    7,994.87x = 11,993.40 × 2,728.47
  4. Step 4: Simplify right side
    7,994.87x = 32,723,558.49
  5. Step 5: Solve for x
    x = 32,723,558.49/7,994.87
  6. Step 6: Final answer
    x = 4,093.07

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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.