Home / 13,940.82-19,231.83-8,633.70

Finding the Fourth Proportional to 13,940.82, 19,231.83 and 8,633.70

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Solution

The fourth proportional to 13,940.82, 19,231.83 and 8,633.70 is: 11,910.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.82 : 19,231.83 = 8,633.70 : x
  2. Step 2: Convert to fraction form
    13,940.82/19,231.83 = 8,633.70/x
  3. Step 3: Cross multiply
    13,940.82x = 19,231.83 × 8,633.70
  4. Step 4: Simplify right side
    13,940.82x = 166,041,850.67
  5. Step 5: Solve for x
    x = 166,041,850.67/13,940.82
  6. Step 6: Final answer
    x = 11,910.48

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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.