Home / 7,876.44-11,811.63-2,609.85

Finding the Fourth Proportional to 7,876.44, 11,811.63 and 2,609.85

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Solution

The fourth proportional to 7,876.44, 11,811.63 and 2,609.85 is: 3,913.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,876.44 : 11,811.63 = 2,609.85 : x
  2. Step 2: Convert to fraction form
    7,876.44/11,811.63 = 2,609.85/x
  3. Step 3: Cross multiply
    7,876.44x = 11,811.63 × 2,609.85
  4. Step 4: Simplify right side
    7,876.44x = 30,826,582.56
  5. Step 5: Solve for x
    x = 30,826,582.56/7,876.44
  6. Step 6: Final answer
    x = 3,913.77

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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.