Home / 11,993.28-17,991.20-3,228.32

Finding the Fourth Proportional to 11,993.28, 17,991.20 and 3,228.32

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Solution

The fourth proportional to 11,993.28, 17,991.20 and 3,228.32 is: 4,842.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,993.28 : 17,991.20 = 3,228.32 : x
  2. Step 2: Convert to fraction form
    11,993.28/17,991.20 = 3,228.32/x
  3. Step 3: Cross multiply
    11,993.28x = 17,991.20 × 3,228.32
  4. Step 4: Simplify right side
    11,993.28x = 58,081,350.78
  5. Step 5: Solve for x
    x = 58,081,350.78/11,993.28
  6. Step 6: Final answer
    x = 4,842.82

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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.