Home / 11,845.80-16,350.12-8,317.44

Finding the Fourth Proportional to 11,845.80, 16,350.12 and 8,317.44

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Solution

The fourth proportional to 11,845.80, 16,350.12 and 8,317.44 is: 11,480.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,845.80 : 16,350.12 = 8,317.44 : x
  2. Step 2: Convert to fraction form
    11,845.80/16,350.12 = 8,317.44/x
  3. Step 3: Cross multiply
    11,845.80x = 16,350.12 × 8,317.44
  4. Step 4: Simplify right side
    11,845.80x = 135,991,142.09
  5. Step 5: Solve for x
    x = 135,991,142.09/11,845.80
  6. Step 6: Final answer
    x = 11,480.11

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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.