Home / 11,920.68-16,245.45-11,876.94

Finding the Fourth Proportional to 11,920.68, 16,245.45 and 11,876.94

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Solution

The fourth proportional to 11,920.68, 16,245.45 and 11,876.94 is: 16,185.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,920.68 : 16,245.45 = 11,876.94 : x
  2. Step 2: Convert to fraction form
    11,920.68/16,245.45 = 11,876.94/x
  3. Step 3: Cross multiply
    11,920.68x = 16,245.45 × 11,876.94
  4. Step 4: Simplify right side
    11,920.68x = 192,946,234.92
  5. Step 5: Solve for x
    x = 192,946,234.92/11,920.68
  6. Step 6: Final answer
    x = 16,185.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.