Home / 7,764.75-11,611.34-5,767.20

Finding the Fourth Proportional to 7,764.75, 11,611.34 and 5,767.20

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Solution

The fourth proportional to 7,764.75, 11,611.34 and 5,767.20 is: 8,624.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,764.75 : 11,611.34 = 5,767.20 : x
  2. Step 2: Convert to fraction form
    7,764.75/11,611.34 = 5,767.20/x
  3. Step 3: Cross multiply
    7,764.75x = 11,611.34 × 5,767.20
  4. Step 4: Simplify right side
    7,764.75x = 66,964,891.21
  5. Step 5: Solve for x
    x = 66,964,891.21/7,764.75
  6. Step 6: Final answer
    x = 8,624.22

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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.