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Finding the Fourth Proportional to 7,195.20, 10,798.20 and 7,161.72

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Solution

The fourth proportional to 7,195.20, 10,798.20 and 7,161.72 is: 10,747.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,195.20 : 10,798.20 = 7,161.72 : x
  2. Step 2: Convert to fraction form
    7,195.20/10,798.20 = 7,161.72/x
  3. Step 3: Cross multiply
    7,195.20x = 10,798.20 × 7,161.72
  4. Step 4: Simplify right side
    7,195.20x = 77,333,684.90
  5. Step 5: Solve for x
    x = 77,333,684.90/7,195.20
  6. Step 6: Final answer
    x = 10,747.95

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.