Home / 11,936.81-16,480.39-8,166.26

Finding the Fourth Proportional to 11,936.81, 16,480.39 and 8,166.26

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Solution

The fourth proportional to 11,936.81, 16,480.39 and 8,166.26 is: 11,274.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,936.81 : 16,480.39 = 8,166.26 : x
  2. Step 2: Convert to fraction form
    11,936.81/16,480.39 = 8,166.26/x
  3. Step 3: Cross multiply
    11,936.81x = 16,480.39 × 8,166.26
  4. Step 4: Simplify right side
    11,936.81x = 134,583,149.64
  5. Step 5: Solve for x
    x = 134,583,149.64/11,936.81
  6. Step 6: Final answer
    x = 11,274.63

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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.