Home / 11,286.09-16,919.89-4,262.11

Finding the Fourth Proportional to 11,286.09, 16,919.89 and 4,262.11

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Solution

The fourth proportional to 11,286.09, 16,919.89 and 4,262.11 is: 6,389.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.09 : 16,919.89 = 4,262.11 : x
  2. Step 2: Convert to fraction form
    11,286.09/16,919.89 = 4,262.11/x
  3. Step 3: Cross multiply
    11,286.09x = 16,919.89 × 4,262.11
  4. Step 4: Simplify right side
    11,286.09x = 72,114,486.57
  5. Step 5: Solve for x
    x = 72,114,486.57/11,286.09
  6. Step 6: Final answer
    x = 6,389.68

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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.