Home / 7,769.80-11,631.84-5,132.44

Finding the Fourth Proportional to 7,769.80, 11,631.84 and 5,132.44

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Solution

The fourth proportional to 7,769.80, 11,631.84 and 5,132.44 is: 7,683.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769.80 : 11,631.84 = 5,132.44 : x
  2. Step 2: Convert to fraction form
    7,769.80/11,631.84 = 5,132.44/x
  3. Step 3: Cross multiply
    7,769.80x = 11,631.84 × 5,132.44
  4. Step 4: Simplify right side
    7,769.80x = 59,699,720.89
  5. Step 5: Solve for x
    x = 59,699,720.89/7,769.80
  6. Step 6: Final answer
    x = 7,683.56

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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.