Home / 11,910.91-17,866.59-4,518.85

Finding the Fourth Proportional to 11,910.91, 17,866.59 and 4,518.85

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Solution

The fourth proportional to 11,910.91, 17,866.59 and 4,518.85 is: 6,778.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,910.91 : 17,866.59 = 4,518.85 : x
  2. Step 2: Convert to fraction form
    11,910.91/17,866.59 = 4,518.85/x
  3. Step 3: Cross multiply
    11,910.91x = 17,866.59 × 4,518.85
  4. Step 4: Simplify right side
    11,910.91x = 80,736,440.22
  5. Step 5: Solve for x
    x = 80,736,440.22/11,910.91
  6. Step 6: Final answer
    x = 6,778.36

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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.