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Finding the Fourth Proportional to 10,952.80, 15,116.27 and 7,179.16

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Solution

The fourth proportional to 10,952.80, 15,116.27 and 7,179.16 is: 9,908.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,952.80 : 15,116.27 = 7,179.16 : x
  2. Step 2: Convert to fraction form
    10,952.80/15,116.27 = 7,179.16/x
  3. Step 3: Cross multiply
    10,952.80x = 15,116.27 × 7,179.16
  4. Step 4: Simplify right side
    10,952.80x = 108,522,120.93
  5. Step 5: Solve for x
    x = 108,522,120.93/10,952.80
  6. Step 6: Final answer
    x = 9,908.16

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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.