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Finding the Fourth Proportional to 13,292.73, 18,343.96 and 7,324.38

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Solution

The fourth proportional to 13,292.73, 18,343.96 and 7,324.38 is: 10,107.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,292.73 : 18,343.96 = 7,324.38 : x
  2. Step 2: Convert to fraction form
    13,292.73/18,343.96 = 7,324.38/x
  3. Step 3: Cross multiply
    13,292.73x = 18,343.96 × 7,324.38
  4. Step 4: Simplify right side
    13,292.73x = 134,358,133.74
  5. Step 5: Solve for x
    x = 134,358,133.74/13,292.73
  6. Step 6: Final answer
    x = 10,107.64

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Why These Related Problems?

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