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Finding the Fourth Proportional to 13,542.52, 18,681.54 and 11,027.48

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Solution

The fourth proportional to 13,542.52, 18,681.54 and 11,027.48 is: 15,212.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,542.52 : 18,681.54 = 11,027.48 : x
  2. Step 2: Convert to fraction form
    13,542.52/18,681.54 = 11,027.48/x
  3. Step 3: Cross multiply
    13,542.52x = 18,681.54 × 11,027.48
  4. Step 4: Simplify right side
    13,542.52x = 206,010,308.72
  5. Step 5: Solve for x
    x = 206,010,308.72/13,542.52
  6. Step 6: Final answer
    x = 15,212.11

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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.