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Finding the Fourth Proportional to 8,111.44, 11,193.78 and 4,385.44

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Solution

The fourth proportional to 8,111.44, 11,193.78 and 4,385.44 is: 6,051.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,111.44 : 11,193.78 = 4,385.44 : x
  2. Step 2: Convert to fraction form
    8,111.44/11,193.78 = 4,385.44/x
  3. Step 3: Cross multiply
    8,111.44x = 11,193.78 × 4,385.44
  4. Step 4: Simplify right side
    8,111.44x = 49,089,650.56
  5. Step 5: Solve for x
    x = 49,089,650.56/8,111.44
  6. Step 6: Final answer
    x = 6,051.90

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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.