Home / 11,177.76-16,766.59-2,857.77

Finding the Fourth Proportional to 11,177.76, 16,766.59 and 2,857.77

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Solution

The fourth proportional to 11,177.76, 16,766.59 and 2,857.77 is: 4,286.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,177.76 : 16,766.59 = 2,857.77 : x
  2. Step 2: Convert to fraction form
    11,177.76/16,766.59 = 2,857.77/x
  3. Step 3: Cross multiply
    11,177.76x = 16,766.59 × 2,857.77
  4. Step 4: Simplify right side
    11,177.76x = 47,915,057.90
  5. Step 5: Solve for x
    x = 47,915,057.90/11,177.76
  6. Step 6: Final answer
    x = 4,286.64

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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.