Home / 12,713.28-19,069.92-3,949.08

Finding the Fourth Proportional to 12,713.28, 19,069.92 and 3,949.08

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Solution

The fourth proportional to 12,713.28, 19,069.92 and 3,949.08 is: 5,923.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,713.28 : 19,069.92 = 3,949.08 : x
  2. Step 2: Convert to fraction form
    12,713.28/19,069.92 = 3,949.08/x
  3. Step 3: Cross multiply
    12,713.28x = 19,069.92 × 3,949.08
  4. Step 4: Simplify right side
    12,713.28x = 75,308,639.67
  5. Step 5: Solve for x
    x = 75,308,639.67/12,713.28
  6. Step 6: Final answer
    x = 5,923.62

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Similar ratio
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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.