Home / 11,965.82-16,516.53-8,187.57

Finding the Fourth Proportional to 11,965.82, 16,516.53 and 8,187.57

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Solution

The fourth proportional to 11,965.82, 16,516.53 and 8,187.57 is: 11,301.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,965.82 : 16,516.53 = 8,187.57 : x
  2. Step 2: Convert to fraction form
    11,965.82/16,516.53 = 8,187.57/x
  3. Step 3: Cross multiply
    11,965.82x = 16,516.53 × 8,187.57
  4. Step 4: Simplify right side
    11,965.82x = 135,230,245.53
  5. Step 5: Solve for x
    x = 135,230,245.53/11,965.82
  6. Step 6: Final answer
    x = 11,301.38

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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.