Home / 12,703.97-19,057.79-3,939.59

Finding the Fourth Proportional to 12,703.97, 19,057.79 and 3,939.59

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Solution

The fourth proportional to 12,703.97, 19,057.79 and 3,939.59 is: 5,909.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,703.97 : 19,057.79 = 3,939.59 : x
  2. Step 2: Convert to fraction form
    12,703.97/19,057.79 = 3,939.59/x
  3. Step 3: Cross multiply
    12,703.97x = 19,057.79 × 3,939.59
  4. Step 4: Simplify right side
    12,703.97x = 75,079,793.47
  5. Step 5: Solve for x
    x = 75,079,793.47/12,703.97
  6. Step 6: Final answer
    x = 5,909.95

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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.