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Finding the Fourth Proportional to 10,912.46, 15,047.27 and 7,369.52

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Solution

The fourth proportional to 10,912.46, 15,047.27 and 7,369.52 is: 10,161.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912.46 : 15,047.27 = 7,369.52 : x
  2. Step 2: Convert to fraction form
    10,912.46/15,047.27 = 7,369.52/x
  3. Step 3: Cross multiply
    10,912.46x = 15,047.27 × 7,369.52
  4. Step 4: Simplify right side
    10,912.46x = 110,891,072.76
  5. Step 5: Solve for x
    x = 110,891,072.76/10,912.46
  6. Step 6: Final answer
    x = 10,161.88

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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.