Home / 8,238.30-11,370.71-6,442.22

Finding the Fourth Proportional to 8,238.30, 11,370.71 and 6,442.22

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Solution

The fourth proportional to 8,238.30, 11,370.71 and 6,442.22 is: 8,891.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,238.30 : 11,370.71 = 6,442.22 : x
  2. Step 2: Convert to fraction form
    8,238.30/11,370.71 = 6,442.22/x
  3. Step 3: Cross multiply
    8,238.30x = 11,370.71 × 6,442.22
  4. Step 4: Simplify right side
    8,238.30x = 73,252,615.38
  5. Step 5: Solve for x
    x = 73,252,615.38/8,238.30
  6. Step 6: Final answer
    x = 8,891.71

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Half scale
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Double scale
Find fourth proportional to 8,239.30, 11,372.09 and 6,443.22
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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.