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Finding the Fourth Proportional to 13,163.92, 18,166.20 and 7,195.59

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Solution

The fourth proportional to 13,163.92, 18,166.20 and 7,195.59 is: 9,929.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163.92 : 18,166.20 = 7,195.59 : x
  2. Step 2: Convert to fraction form
    13,163.92/18,166.20 = 7,195.59/x
  3. Step 3: Cross multiply
    13,163.92x = 18,166.20 × 7,195.59
  4. Step 4: Simplify right side
    13,163.92x = 130,716,527.06
  5. Step 5: Solve for x
    x = 130,716,527.06/13,163.92
  6. Step 6: Final answer
    x = 9,929.91

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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.