Home / 11,121.45-16,676.78-6,185.85

Finding the Fourth Proportional to 11,121.45, 16,676.78 and 6,185.85

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Solution

The fourth proportional to 11,121.45, 16,676.78 and 6,185.85 is: 9,275.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.45 : 16,676.78 = 6,185.85 : x
  2. Step 2: Convert to fraction form
    11,121.45/16,676.78 = 6,185.85/x
  3. Step 3: Cross multiply
    11,121.45x = 16,676.78 × 6,185.85
  4. Step 4: Simplify right side
    11,121.45x = 103,160,028.63
  5. Step 5: Solve for x
    x = 103,160,028.63/11,121.45
  6. Step 6: Final answer
    x = 9,275.77

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1.5x scale

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.