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Finding the Fourth Proportional to 13,352.64, 18,435.77 and 8,324.56

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Solution

The fourth proportional to 13,352.64, 18,435.77 and 8,324.56 is: 11,493.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,352.64 : 18,435.77 = 8,324.56 : x
  2. Step 2: Convert to fraction form
    13,352.64/18,435.77 = 8,324.56/x
  3. Step 3: Cross multiply
    13,352.64x = 18,435.77 × 8,324.56
  4. Step 4: Simplify right side
    13,352.64x = 153,469,673.51
  5. Step 5: Solve for x
    x = 153,469,673.51/13,352.64
  6. Step 6: Final answer
    x = 11,493.58

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.