Home / 11,286.81-16,932.11-4,171.46

Finding the Fourth Proportional to 11,286.81, 16,932.11 and 4,171.46

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Solution

The fourth proportional to 11,286.81, 16,932.11 and 4,171.46 is: 6,257.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.81 : 16,932.11 = 4,171.46 : x
  2. Step 2: Convert to fraction form
    11,286.81/16,932.11 = 4,171.46/x
  3. Step 3: Cross multiply
    11,286.81x = 16,932.11 × 4,171.46
  4. Step 4: Simplify right side
    11,286.81x = 70,631,619.58
  5. Step 5: Solve for x
    x = 70,631,619.58/11,286.81
  6. Step 6: Final answer
    x = 6,257.89

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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.