Home / 11,747.73-16,212.61-7,761.85

Finding the Fourth Proportional to 11,747.73, 16,212.61 and 7,761.85

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Solution

The fourth proportional to 11,747.73, 16,212.61 and 7,761.85 is: 10,711.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,747.73 : 16,212.61 = 7,761.85 : x
  2. Step 2: Convert to fraction form
    11,747.73/16,212.61 = 7,761.85/x
  3. Step 3: Cross multiply
    11,747.73x = 16,212.61 × 7,761.85
  4. Step 4: Simplify right side
    11,747.73x = 125,839,846.93
  5. Step 5: Solve for x
    x = 125,839,846.93/11,747.73
  6. Step 6: Final answer
    x = 10,711.84

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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.