Home / 11,919.22-17,867.86-4,122.56

Finding the Fourth Proportional to 11,919.22, 17,867.86 and 4,122.56

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Solution

The fourth proportional to 11,919.22, 17,867.86 and 4,122.56 is: 6,180.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,919.22 : 17,867.86 = 4,122.56 : x
  2. Step 2: Convert to fraction form
    11,919.22/17,867.86 = 4,122.56/x
  3. Step 3: Cross multiply
    11,919.22x = 17,867.86 × 4,122.56
  4. Step 4: Simplify right side
    11,919.22x = 73,661,359.28
  5. Step 5: Solve for x
    x = 73,661,359.28/11,919.22
  6. Step 6: Final answer
    x = 6,180.05

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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.