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Finding the Fourth Proportional to 8,226.40, 11,353.68 and 5,243.44

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Solution

The fourth proportional to 8,226.40, 11,353.68 and 5,243.44 is: 7,236.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,226.40 : 11,353.68 = 5,243.44 : x
  2. Step 2: Convert to fraction form
    8,226.40/11,353.68 = 5,243.44/x
  3. Step 3: Cross multiply
    8,226.40x = 11,353.68 × 5,243.44
  4. Step 4: Simplify right side
    8,226.40x = 59,532,339.86
  5. Step 5: Solve for x
    x = 59,532,339.86/8,226.40
  6. Step 6: Final answer
    x = 7,236.74

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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.