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Finding the Fourth Proportional to 18,018.75, 27,016.94 and 7,496.15

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Solution

The fourth proportional to 18,018.75, 27,016.94 and 7,496.15 is: 11,239.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,018.75 : 27,016.94 = 7,496.15 : x
  2. Step 2: Convert to fraction form
    18,018.75/27,016.94 = 7,496.15/x
  3. Step 3: Cross multiply
    18,018.75x = 27,016.94 × 7,496.15
  4. Step 4: Simplify right side
    18,018.75x = 202,522,918.44
  5. Step 5: Solve for x
    x = 202,522,918.44/18,018.75
  6. Step 6: Final answer
    x = 11,239.56

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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.