Home / 11,987.28-17,980.92-4,194.27

Finding the Fourth Proportional to 11,987.28, 17,980.92 and 4,194.27

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Solution

The fourth proportional to 11,987.28, 17,980.92 and 4,194.27 is: 6,291.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.28 : 17,980.92 = 4,194.27 : x
  2. Step 2: Convert to fraction form
    11,987.28/17,980.92 = 4,194.27/x
  3. Step 3: Cross multiply
    11,987.28x = 17,980.92 × 4,194.27
  4. Step 4: Simplify right side
    11,987.28x = 75,416,833.33
  5. Step 5: Solve for x
    x = 75,416,833.33/11,987.28
  6. Step 6: Final answer
    x = 6,291.41

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Similar ratio
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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.