Home / 7,845.23-11,757.46-3,677.78

Finding the Fourth Proportional to 7,845.23, 11,757.46 and 3,677.78

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Solution

The fourth proportional to 7,845.23, 11,757.46 and 3,677.78 is: 5,511.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.23 : 11,757.46 = 3,677.78 : x
  2. Step 2: Convert to fraction form
    7,845.23/11,757.46 = 3,677.78/x
  3. Step 3: Cross multiply
    7,845.23x = 11,757.46 × 3,677.78
  4. Step 4: Simplify right side
    7,845.23x = 43,241,351.24
  5. Step 5: Solve for x
    x = 43,241,351.24/7,845.23
  6. Step 6: Final answer
    x = 5,511.80

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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.