Home / 11,177.81-16,766.70-2,857.83

Finding the Fourth Proportional to 11,177.81, 16,766.70 and 2,857.83

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Solution

The fourth proportional to 11,177.81, 16,766.70 and 2,857.83 is: 4,286.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,177.81 : 16,766.70 = 2,857.83 : x
  2. Step 2: Convert to fraction form
    11,177.81/16,766.70 = 2,857.83/x
  3. Step 3: Cross multiply
    11,177.81x = 16,766.70 × 2,857.83
  4. Step 4: Simplify right side
    11,177.81x = 47,916,378.26
  5. Step 5: Solve for x
    x = 47,916,378.26/11,177.81
  6. Step 6: Final answer
    x = 4,286.74

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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.