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Finding the Fourth Proportional to 12,016.44, 18,019.80 and 3,694.50

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Solution

The fourth proportional to 12,016.44, 18,019.80 and 3,694.50 is: 5,540.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,016.44 : 18,019.80 = 3,694.50 : x
  2. Step 2: Convert to fraction form
    12,016.44/18,019.80 = 3,694.50/x
  3. Step 3: Cross multiply
    12,016.44x = 18,019.80 × 3,694.50
  4. Step 4: Simplify right side
    12,016.44x = 66,574,151.10
  5. Step 5: Solve for x
    x = 66,574,151.10/12,016.44
  6. Step 6: Final answer
    x = 5,540.26

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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.