Home / 7,822.68-11,732.63-3,872.67

Finding the Fourth Proportional to 7,822.68, 11,732.63 and 3,872.67

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Solution

The fourth proportional to 7,822.68, 11,732.63 and 3,872.67 is: 5,808.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,822.68 : 11,732.63 = 3,872.67 : x
  2. Step 2: Convert to fraction form
    7,822.68/11,732.63 = 3,872.67/x
  3. Step 3: Cross multiply
    7,822.68x = 11,732.63 × 3,872.67
  4. Step 4: Simplify right side
    7,822.68x = 45,436,584.86
  5. Step 5: Solve for x
    x = 45,436,584.86/7,822.68
  6. Step 6: Final answer
    x = 5,808.31

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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.