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Finding the Fourth Proportional to 18,165.30, 27,246.60 and 7,632.60

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Solution

The fourth proportional to 18,165.30, 27,246.60 and 7,632.60 is: 11,448.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,165.30 : 27,246.60 = 7,632.60 : x
  2. Step 2: Convert to fraction form
    18,165.30/27,246.60 = 7,632.60/x
  3. Step 3: Cross multiply
    18,165.30x = 27,246.60 × 7,632.60
  4. Step 4: Simplify right side
    18,165.30x = 207,962,399.16
  5. Step 5: Solve for x
    x = 207,962,399.16/18,165.30
  6. Step 6: Final answer
    x = 11,448.33

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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.