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Finding the Fourth Proportional to 12,195.54, 18,288.99 and 5,266.26

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Solution

The fourth proportional to 12,195.54, 18,288.99 and 5,266.26 is: 7,897.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.54 : 18,288.99 = 5,266.26 : x
  2. Step 2: Convert to fraction form
    12,195.54/18,288.99 = 5,266.26/x
  3. Step 3: Cross multiply
    12,195.54x = 18,288.99 × 5,266.26
  4. Step 4: Simplify right side
    12,195.54x = 96,314,576.48
  5. Step 5: Solve for x
    x = 96,314,576.48/12,195.54
  6. Step 6: Final answer
    x = 7,897.52

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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.