Home / 11,682.20-16,121.68-6,377.24

Finding the Fourth Proportional to 11,682.20, 16,121.68 and 6,377.24

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Solution

The fourth proportional to 11,682.20, 16,121.68 and 6,377.24 is: 8,800.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,682.20 : 16,121.68 = 6,377.24 : x
  2. Step 2: Convert to fraction form
    11,682.20/16,121.68 = 6,377.24/x
  3. Step 3: Cross multiply
    11,682.20x = 16,121.68 × 6,377.24
  4. Step 4: Simplify right side
    11,682.20x = 102,811,822.56
  5. Step 5: Solve for x
    x = 102,811,822.56/11,682.20
  6. Step 6: Final answer
    x = 8,800.72

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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.