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Finding the Fourth Proportional to 8,116.75, 11,201.12 and 4,390.75

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Solution

The fourth proportional to 8,116.75, 11,201.12 and 4,390.75 is: 6,059.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,116.75 : 11,201.12 = 4,390.75 : x
  2. Step 2: Convert to fraction form
    8,116.75/11,201.12 = 4,390.75/x
  3. Step 3: Cross multiply
    8,116.75x = 11,201.12 × 4,390.75
  4. Step 4: Simplify right side
    8,116.75x = 49,181,317.64
  5. Step 5: Solve for x
    x = 49,181,317.64/8,116.75
  6. Step 6: Final answer
    x = 6,059.24

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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.