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Finding the Fourth Proportional to 18,019.75, 27,018.44 and 7,497.15

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Solution

The fourth proportional to 18,019.75, 27,018.44 and 7,497.15 is: 11,241.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,019.75 : 27,018.44 = 7,497.15 : x
  2. Step 2: Convert to fraction form
    18,019.75/27,018.44 = 7,497.15/x
  3. Step 3: Cross multiply
    18,019.75x = 27,018.44 × 7,497.15
  4. Step 4: Simplify right side
    18,019.75x = 202,561,297.45
  5. Step 5: Solve for x
    x = 202,561,297.45/18,019.75
  6. Step 6: Final answer
    x = 11,241.07

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.