Home / 7,912.96-11,869.92-2,069.76

Finding the Fourth Proportional to 7,912.96, 11,869.92 and 2,069.76

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Solution

The fourth proportional to 7,912.96, 11,869.92 and 2,069.76 is: 3,104.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.96 : 11,869.92 = 2,069.76 : x
  2. Step 2: Convert to fraction form
    7,912.96/11,869.92 = 2,069.76/x
  3. Step 3: Cross multiply
    7,912.96x = 11,869.92 × 2,069.76
  4. Step 4: Simplify right side
    7,912.96x = 24,567,885.62
  5. Step 5: Solve for x
    x = 24,567,885.62/7,912.96
  6. Step 6: Final answer
    x = 3,104.77

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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.