Home / 12,694.38-19,042.86-5,294.70

Finding the Fourth Proportional to 12,694.38, 19,042.86 and 5,294.70

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Solution

The fourth proportional to 12,694.38, 19,042.86 and 5,294.70 is: 7,942.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,694.38 : 19,042.86 = 5,294.70 : x
  2. Step 2: Convert to fraction form
    12,694.38/19,042.86 = 5,294.70/x
  3. Step 3: Cross multiply
    12,694.38x = 19,042.86 × 5,294.70
  4. Step 4: Simplify right side
    12,694.38x = 100,826,230.84
  5. Step 5: Solve for x
    x = 100,826,230.84/12,694.38
  6. Step 6: Final answer
    x = 7,942.59

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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.