Home / 11,286.21-16,935.79-8,814.09

Finding the Fourth Proportional to 11,286.21, 16,935.79 and 8,814.09

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Solution

The fourth proportional to 11,286.21, 16,935.79 and 8,814.09 is: 13,226.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.21 : 16,935.79 = 8,814.09 : x
  2. Step 2: Convert to fraction form
    11,286.21/16,935.79 = 8,814.09/x
  3. Step 3: Cross multiply
    11,286.21x = 16,935.79 × 8,814.09
  4. Step 4: Simplify right side
    11,286.21x = 149,273,577.28
  5. Step 5: Solve for x
    x = 149,273,577.28/11,286.21
  6. Step 6: Final answer
    x = 13,226.19

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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.