Home / 7,705.82-11,556.30-3,812.96

Finding the Fourth Proportional to 7,705.82, 11,556.30 and 3,812.96

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Solution

The fourth proportional to 7,705.82, 11,556.30 and 3,812.96 is: 5,718.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,705.82 : 11,556.30 = 3,812.96 : x
  2. Step 2: Convert to fraction form
    7,705.82/11,556.30 = 3,812.96/x
  3. Step 3: Cross multiply
    7,705.82x = 11,556.30 × 3,812.96
  4. Step 4: Simplify right side
    7,705.82x = 44,063,709.65
  5. Step 5: Solve for x
    x = 44,063,709.65/7,705.82
  6. Step 6: Final answer
    x = 5,718.24

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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.