Home / 8,250.72-11,287.68-8,215.44

Finding the Fourth Proportional to 8,250.72, 11,287.68 and 8,215.44

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Solution

The fourth proportional to 8,250.72, 11,287.68 and 8,215.44 is: 11,239.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,250.72 : 11,287.68 = 8,215.44 : x
  2. Step 2: Convert to fraction form
    8,250.72/11,287.68 = 8,215.44/x
  3. Step 3: Cross multiply
    8,250.72x = 11,287.68 × 8,215.44
  4. Step 4: Simplify right side
    8,250.72x = 92,733,257.78
  5. Step 5: Solve for x
    x = 92,733,257.78/8,250.72
  6. Step 6: Final answer
    x = 11,239.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.