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Finding the Fourth Proportional to 11,751.23, 17,621.18 and 6,822.11

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Solution

The fourth proportional to 11,751.23, 17,621.18 and 6,822.11 is: 10,229.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,751.23 : 17,621.18 = 6,822.11 : x
  2. Step 2: Convert to fraction form
    11,751.23/17,621.18 = 6,822.11/x
  3. Step 3: Cross multiply
    11,751.23x = 17,621.18 × 6,822.11
  4. Step 4: Simplify right side
    11,751.23x = 120,213,663.82
  5. Step 5: Solve for x
    x = 120,213,663.82/11,751.23
  6. Step 6: Final answer
    x = 10,229.88

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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.