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Finding the Fourth Proportional to 13,293.91, 18,344.93 and 7,324.61

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Solution

The fourth proportional to 13,293.91, 18,344.93 and 7,324.61 is: 10,107.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.91 : 18,344.93 = 7,324.61 : x
  2. Step 2: Convert to fraction form
    13,293.91/18,344.93 = 7,324.61/x
  3. Step 3: Cross multiply
    13,293.91x = 18,344.93 × 7,324.61
  4. Step 4: Simplify right side
    13,293.91x = 134,369,421.10
  5. Step 5: Solve for x
    x = 134,369,421.10/13,293.91
  6. Step 6: Final answer
    x = 10,107.60

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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.