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Finding the Fourth Proportional to 11,215.73, 16,801.70 and 6,822.29

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Solution

The fourth proportional to 11,215.73, 16,801.70 and 6,822.29 is: 10,220.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.73 : 16,801.70 = 6,822.29 : x
  2. Step 2: Convert to fraction form
    11,215.73/16,801.70 = 6,822.29/x
  3. Step 3: Cross multiply
    11,215.73x = 16,801.70 × 6,822.29
  4. Step 4: Simplify right side
    11,215.73x = 114,625,951.77
  5. Step 5: Solve for x
    x = 114,625,951.77/11,215.73
  6. Step 6: Final answer
    x = 10,220.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.