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Finding the Fourth Proportional to 13,663.25, 18,852.05 and 7,693.73

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Solution

The fourth proportional to 13,663.25, 18,852.05 and 7,693.73 is: 10,615.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.25 : 18,852.05 = 7,693.73 : x
  2. Step 2: Convert to fraction form
    13,663.25/18,852.05 = 7,693.73/x
  3. Step 3: Cross multiply
    13,663.25x = 18,852.05 × 7,693.73
  4. Step 4: Simplify right side
    13,663.25x = 145,042,544.18
  5. Step 5: Solve for x
    x = 145,042,544.18/13,663.25
  6. Step 6: Final answer
    x = 10,615.52

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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.