Home / 11,682.85-16,121.72-6,377.57

Finding the Fourth Proportional to 11,682.85, 16,121.72 and 6,377.57

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Solution

The fourth proportional to 11,682.85, 16,121.72 and 6,377.57 is: 8,800.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,682.85 : 16,121.72 = 6,377.57 : x
  2. Step 2: Convert to fraction form
    11,682.85/16,121.72 = 6,377.57/x
  3. Step 3: Cross multiply
    11,682.85x = 16,121.72 × 6,377.57
  4. Step 4: Simplify right side
    11,682.85x = 102,817,365.93
  5. Step 5: Solve for x
    x = 102,817,365.93/11,682.85
  6. Step 6: Final answer
    x = 8,800.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.