Home / 11,945.51-17,919.11-3,626.20

Finding the Fourth Proportional to 11,945.51, 17,919.11 and 3,626.20

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Solution

The fourth proportional to 11,945.51, 17,919.11 and 3,626.20 is: 5,439.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,945.51 : 17,919.11 = 3,626.20 : x
  2. Step 2: Convert to fraction form
    11,945.51/17,919.11 = 3,626.20/x
  3. Step 3: Cross multiply
    11,945.51x = 17,919.11 × 3,626.20
  4. Step 4: Simplify right side
    11,945.51x = 64,978,276.68
  5. Step 5: Solve for x
    x = 64,978,276.68/11,945.51
  6. Step 6: Final answer
    x = 5,439.56

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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.