Home / 12,723.81-19,088.97-3,958.80

Finding the Fourth Proportional to 12,723.81, 19,088.97 and 3,958.80

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Solution

The fourth proportional to 12,723.81, 19,088.97 and 3,958.80 is: 5,939.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,723.81 : 19,088.97 = 3,958.80 : x
  2. Step 2: Convert to fraction form
    12,723.81/19,088.97 = 3,958.80/x
  3. Step 3: Cross multiply
    12,723.81x = 19,088.97 × 3,958.80
  4. Step 4: Simplify right side
    12,723.81x = 75,569,414.44
  5. Step 5: Solve for x
    x = 75,569,414.44/12,723.81
  6. Step 6: Final answer
    x = 5,939.21

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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.