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Finding the Fourth Proportional to 8,787.94, 13,169.41 and 6,804.32

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Solution

The fourth proportional to 8,787.94, 13,169.41 and 6,804.32 is: 10,196.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.94 : 13,169.41 = 6,804.32 : x
  2. Step 2: Convert to fraction form
    8,787.94/13,169.41 = 6,804.32/x
  3. Step 3: Cross multiply
    8,787.94x = 13,169.41 × 6,804.32
  4. Step 4: Simplify right side
    8,787.94x = 89,608,796.99
  5. Step 5: Solve for x
    x = 89,608,796.99/8,787.94
  6. Step 6: Final answer
    x = 10,196.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.