Home / 7,982.80-11,961.90-5,054.96

Finding the Fourth Proportional to 7,982.80, 11,961.90 and 5,054.96

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Solution

The fourth proportional to 7,982.80, 11,961.90 and 5,054.96 is: 7,574.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.80 : 11,961.90 = 5,054.96 : x
  2. Step 2: Convert to fraction form
    7,982.80/11,961.90 = 5,054.96/x
  3. Step 3: Cross multiply
    7,982.80x = 11,961.90 × 5,054.96
  4. Step 4: Simplify right side
    7,982.80x = 60,466,926.02
  5. Step 5: Solve for x
    x = 60,466,926.02/7,982.80
  6. Step 6: Final answer
    x = 7,574.65

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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.