Home / 11,755.44-16,215.12-8,217.36

Finding the Fourth Proportional to 11,755.44, 16,215.12 and 8,217.36

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Solution

The fourth proportional to 11,755.44, 16,215.12 and 8,217.36 is: 11,334.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,755.44 : 16,215.12 = 8,217.36 : x
  2. Step 2: Convert to fraction form
    11,755.44/16,215.12 = 8,217.36/x
  3. Step 3: Cross multiply
    11,755.44x = 16,215.12 × 8,217.36
  4. Step 4: Simplify right side
    11,755.44x = 133,245,478.48
  5. Step 5: Solve for x
    x = 133,245,478.48/11,755.44
  6. Step 6: Final answer
    x = 11,334.79

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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.