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Finding the Fourth Proportional to 8,867.84, 13,305.83 and 3,321.63

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Solution

The fourth proportional to 8,867.84, 13,305.83 and 3,321.63 is: 4,983.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,867.84 : 13,305.83 = 3,321.63 : x
  2. Step 2: Convert to fraction form
    8,867.84/13,305.83 = 3,321.63/x
  3. Step 3: Cross multiply
    8,867.84x = 13,305.83 × 3,321.63
  4. Step 4: Simplify right side
    8,867.84x = 44,197,027.49
  5. Step 5: Solve for x
    x = 44,197,027.49/8,867.84
  6. Step 6: Final answer
    x = 4,983.97

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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.