Home / 12,717.81-19,079.96-3,952.80

Finding the Fourth Proportional to 12,717.81, 19,079.96 and 3,952.80

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Solution

The fourth proportional to 12,717.81, 19,079.96 and 3,952.80 is: 5,930.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,717.81 : 19,079.96 = 3,952.80 : x
  2. Step 2: Convert to fraction form
    12,717.81/19,079.96 = 3,952.80/x
  3. Step 3: Cross multiply
    12,717.81x = 19,079.96 × 3,952.80
  4. Step 4: Simplify right side
    12,717.81x = 75,419,246.12
  5. Step 5: Solve for x
    x = 75,419,246.12/12,717.81
  6. Step 6: Final answer
    x = 5,930.21

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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.