Home / 11,682.45-16,121.84-6,377.38

Finding the Fourth Proportional to 11,682.45, 16,121.84 and 6,377.38

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Solution

The fourth proportional to 11,682.45, 16,121.84 and 6,377.38 is: 8,800.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,682.45 : 16,121.84 = 6,377.38 : x
  2. Step 2: Convert to fraction form
    11,682.45/16,121.84 = 6,377.38/x
  3. Step 3: Cross multiply
    11,682.45x = 16,121.84 × 6,377.38
  4. Step 4: Simplify right side
    11,682.45x = 102,815,118.47
  5. Step 5: Solve for x
    x = 102,815,118.47/11,682.45
  6. Step 6: Final answer
    x = 8,800.82

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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.