Home / 12,736.72-19,105.54-3,972.32

Finding the Fourth Proportional to 12,736.72, 19,105.54 and 3,972.32

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Solution

The fourth proportional to 12,736.72, 19,105.54 and 3,972.32 is: 5,958.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,736.72 : 19,105.54 = 3,972.32 : x
  2. Step 2: Convert to fraction form
    12,736.72/19,105.54 = 3,972.32/x
  3. Step 3: Cross multiply
    12,736.72x = 19,105.54 × 3,972.32
  4. Step 4: Simplify right side
    12,736.72x = 75,893,318.65
  5. Step 5: Solve for x
    x = 75,893,318.65/12,736.72
  6. Step 6: Final answer
    x = 5,958.62

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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.