Home / 11,139.26-16,704.23-4,117.78

Finding the Fourth Proportional to 11,139.26, 16,704.23 and 4,117.78

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Solution

The fourth proportional to 11,139.26, 16,704.23 and 4,117.78 is: 6,174.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.26 : 16,704.23 = 4,117.78 : x
  2. Step 2: Convert to fraction form
    11,139.26/16,704.23 = 4,117.78/x
  3. Step 3: Cross multiply
    11,139.26x = 16,704.23 × 4,117.78
  4. Step 4: Simplify right side
    11,139.26x = 68,784,344.21
  5. Step 5: Solve for x
    x = 68,784,344.21/11,139.26
  6. Step 6: Final answer
    x = 6,174.95

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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.