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Finding the Fourth Proportional to 11,759.87, 16,228.92 and 6,454.64

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Solution

The fourth proportional to 11,759.87, 16,228.92 and 6,454.64 is: 8,907.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,759.87 : 16,228.92 = 6,454.64 : x
  2. Step 2: Convert to fraction form
    11,759.87/16,228.92 = 6,454.64/x
  3. Step 3: Cross multiply
    11,759.87x = 16,228.92 × 6,454.64
  4. Step 4: Simplify right side
    11,759.87x = 104,751,836.19
  5. Step 5: Solve for x
    x = 104,751,836.19/11,759.87
  6. Step 6: Final answer
    x = 8,907.57

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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.