Home / 7,876.81-11,817.60-3,195.96

Finding the Fourth Proportional to 7,876.81, 11,817.60 and 3,195.96

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Solution

The fourth proportional to 7,876.81, 11,817.60 and 3,195.96 is: 4,794.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,876.81 : 11,817.60 = 3,195.96 : x
  2. Step 2: Convert to fraction form
    7,876.81/11,817.60 = 3,195.96/x
  3. Step 3: Cross multiply
    7,876.81x = 11,817.60 × 3,195.96
  4. Step 4: Simplify right side
    7,876.81x = 37,768,520.60
  5. Step 5: Solve for x
    x = 37,768,520.60/7,876.81
  6. Step 6: Final answer
    x = 4,794.90

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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.