Home / 8,115.98-11,187.25-5,984.68

Finding the Fourth Proportional to 8,115.98, 11,187.25 and 5,984.68

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Solution

The fourth proportional to 8,115.98, 11,187.25 and 5,984.68 is: 8,249.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.98 : 11,187.25 = 5,984.68 : x
  2. Step 2: Convert to fraction form
    8,115.98/11,187.25 = 5,984.68/x
  3. Step 3: Cross multiply
    8,115.98x = 11,187.25 × 5,984.68
  4. Step 4: Simplify right side
    8,115.98x = 66,952,142.98
  5. Step 5: Solve for x
    x = 66,952,142.98/8,115.98
  6. Step 6: Final answer
    x = 8,249.43

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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.