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Finding the Fourth Proportional to 10,961.96, 15,126.42 and 6,245.96

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Solution

The fourth proportional to 10,961.96, 15,126.42 and 6,245.96 is: 8,618.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961.96 : 15,126.42 = 6,245.96 : x
  2. Step 2: Convert to fraction form
    10,961.96/15,126.42 = 6,245.96/x
  3. Step 3: Cross multiply
    10,961.96x = 15,126.42 × 6,245.96
  4. Step 4: Simplify right side
    10,961.96x = 94,479,014.26
  5. Step 5: Solve for x
    x = 94,479,014.26/10,961.96
  6. Step 6: Final answer
    x = 8,618.81

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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.