Home / 7,994.39-11,990.66-2,150.54

Finding the Fourth Proportional to 7,994.39, 11,990.66 and 2,150.54

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Solution

The fourth proportional to 7,994.39, 11,990.66 and 2,150.54 is: 3,225.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.39 : 11,990.66 = 2,150.54 : x
  2. Step 2: Convert to fraction form
    7,994.39/11,990.66 = 2,150.54/x
  3. Step 3: Cross multiply
    7,994.39x = 11,990.66 × 2,150.54
  4. Step 4: Simplify right side
    7,994.39x = 25,786,323.25
  5. Step 5: Solve for x
    x = 25,786,323.25/7,994.39
  6. Step 6: Final answer
    x = 3,225.55

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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.