Home / 11,992.16-17,987.60-3,672.18

Finding the Fourth Proportional to 11,992.16, 17,987.60 and 3,672.18

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Solution

The fourth proportional to 11,992.16, 17,987.60 and 3,672.18 is: 5,508.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,992.16 : 17,987.60 = 3,672.18 : x
  2. Step 2: Convert to fraction form
    11,992.16/17,987.60 = 3,672.18/x
  3. Step 3: Cross multiply
    11,992.16x = 17,987.60 × 3,672.18
  4. Step 4: Simplify right side
    11,992.16x = 66,053,704.97
  5. Step 5: Solve for x
    x = 66,053,704.97/11,992.16
  6. Step 6: Final answer
    x = 5,508.07

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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.