Home / 8,212.88-11,334.12-4,487.12

Finding the Fourth Proportional to 8,212.88, 11,334.12 and 4,487.12

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Solution

The fourth proportional to 8,212.88, 11,334.12 and 4,487.12 is: 6,192.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,212.88 : 11,334.12 = 4,487.12 : x
  2. Step 2: Convert to fraction form
    8,212.88/11,334.12 = 4,487.12/x
  3. Step 3: Cross multiply
    8,212.88x = 11,334.12 × 4,487.12
  4. Step 4: Simplify right side
    8,212.88x = 50,857,556.53
  5. Step 5: Solve for x
    x = 50,857,556.53/8,212.88
  6. Step 6: Final answer
    x = 6,192.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.