Home / 12,724.66-19,085.91-3,958.75

Finding the Fourth Proportional to 12,724.66, 19,085.91 and 3,958.75

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Solution

The fourth proportional to 12,724.66, 19,085.91 and 3,958.75 is: 5,937.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,724.66 : 19,085.91 = 3,958.75 : x
  2. Step 2: Convert to fraction form
    12,724.66/19,085.91 = 3,958.75/x
  3. Step 3: Cross multiply
    12,724.66x = 19,085.91 × 3,958.75
  4. Step 4: Simplify right side
    12,724.66x = 75,556,346.21
  5. Step 5: Solve for x
    x = 75,556,346.21/12,724.66
  6. Step 6: Final answer
    x = 5,937.79

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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.