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Finding the Fourth Proportional to 12,239.26, 16,890.22 and 6,650.26

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Solution

The fourth proportional to 12,239.26, 16,890.22 and 6,650.26 is: 9,177.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239.26 : 16,890.22 = 6,650.26 : x
  2. Step 2: Convert to fraction form
    12,239.26/16,890.22 = 6,650.26/x
  3. Step 3: Cross multiply
    12,239.26x = 16,890.22 × 6,650.26
  4. Step 4: Simplify right side
    12,239.26x = 112,324,354.46
  5. Step 5: Solve for x
    x = 112,324,354.46/12,239.26
  6. Step 6: Final answer
    x = 9,177.38

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Double scale
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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.