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Finding the Fourth Proportional to 13,736.96, 18,957.12 and 7,449.33

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Solution

The fourth proportional to 13,736.96, 18,957.12 and 7,449.33 is: 10,280.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,736.96 : 18,957.12 = 7,449.33 : x
  2. Step 2: Convert to fraction form
    13,736.96/18,957.12 = 7,449.33/x
  3. Step 3: Cross multiply
    13,736.96x = 18,957.12 × 7,449.33
  4. Step 4: Simplify right side
    13,736.96x = 141,217,842.73
  5. Step 5: Solve for x
    x = 141,217,842.73/13,736.96
  6. Step 6: Final answer
    x = 10,280.14

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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.