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Finding the Third Proportional to 12,644 and 19,228

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Solution

The third proportional to 12,644 and 19,228 is: 29,240.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,644 : 19,228 = 19,228 : x
  2. Step 2: Convert to fraction form
    12,644/19,228 = 19,228/x
  3. Step 3: Cross multiply
    12,644x = 19,228 × 19,228
  4. Step 4: Simplify right side
    12,644x = 369,715,984
  5. Step 5: Solve for x
    x = 369,715,984/12,644
  6. Step 6: Final answer
    x = 29,240.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.