Home / 11,286.66-16,928.91-3,890.10

Finding the Fourth Proportional to 11,286.66, 16,928.91 and 3,890.10

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Solution

The fourth proportional to 11,286.66, 16,928.91 and 3,890.10 is: 5,834.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.66 : 16,928.91 = 3,890.10 : x
  2. Step 2: Convert to fraction form
    11,286.66/16,928.91 = 3,890.10/x
  3. Step 3: Cross multiply
    11,286.66x = 16,928.91 × 3,890.10
  4. Step 4: Simplify right side
    11,286.66x = 65,855,152.79
  5. Step 5: Solve for x
    x = 65,855,152.79/11,286.66
  6. Step 6: Final answer
    x = 5,834.78

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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.