Home / 12,724.40-19,087.84-3,956.96

Finding the Fourth Proportional to 12,724.40, 19,087.84 and 3,956.96

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Solution

The fourth proportional to 12,724.40, 19,087.84 and 3,956.96 is: 5,935.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,724.40 : 19,087.84 = 3,956.96 : x
  2. Step 2: Convert to fraction form
    12,724.40/19,087.84 = 3,956.96/x
  3. Step 3: Cross multiply
    12,724.40x = 19,087.84 × 3,956.96
  4. Step 4: Simplify right side
    12,724.40x = 75,529,819.37
  5. Step 5: Solve for x
    x = 75,529,819.37/12,724.40
  6. Step 6: Final answer
    x = 5,935.83

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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.