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Finding the Fourth Proportional to 7,367.92, 10,162.20 and 5,386.48

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Solution

The fourth proportional to 7,367.92, 10,162.20 and 5,386.48 is: 7,429.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,367.92 : 10,162.20 = 5,386.48 : x
  2. Step 2: Convert to fraction form
    7,367.92/10,162.20 = 5,386.48/x
  3. Step 3: Cross multiply
    7,367.92x = 10,162.20 × 5,386.48
  4. Step 4: Simplify right side
    7,367.92x = 54,738,487.06
  5. Step 5: Solve for x
    x = 54,738,487.06/7,367.92
  6. Step 6: Final answer
    x = 7,429.30

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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.