Home / 11,991.41-17,987.12-3,227.21

Finding the Fourth Proportional to 11,991.41, 17,987.12 and 3,227.21

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Solution

The fourth proportional to 11,991.41, 17,987.12 and 3,227.21 is: 4,840.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,991.41 : 17,987.12 = 3,227.21 : x
  2. Step 2: Convert to fraction form
    11,991.41/17,987.12 = 3,227.21/x
  3. Step 3: Cross multiply
    11,991.41x = 17,987.12 × 3,227.21
  4. Step 4: Simplify right side
    11,991.41x = 58,048,107.46
  5. Step 5: Solve for x
    x = 58,048,107.46/11,991.41
  6. Step 6: Final answer
    x = 4,840.81

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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.