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Finding the Fourth Proportional to 18,663.48, 27,987.37 and 7,562.41

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Solution

The fourth proportional to 18,663.48, 27,987.37 and 7,562.41 is: 11,340.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,663.48 : 27,987.37 = 7,562.41 : x
  2. Step 2: Convert to fraction form
    18,663.48/27,987.37 = 7,562.41/x
  3. Step 3: Cross multiply
    18,663.48x = 27,987.37 × 7,562.41
  4. Step 4: Simplify right side
    18,663.48x = 211,651,877.89
  5. Step 5: Solve for x
    x = 211,651,877.89/18,663.48
  6. Step 6: Final answer
    x = 11,340.43

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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.