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Finding the Third Proportional to 10,640 and 15,566

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Solution

The third proportional to 10,640 and 15,566 is: 22,772.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,640 : 15,566 = 15,566 : x
  2. Step 2: Convert to fraction form
    10,640/15,566 = 15,566/x
  3. Step 3: Cross multiply
    10,640x = 15,566 × 15,566
  4. Step 4: Simplify right side
    10,640x = 242,300,356
  5. Step 5: Solve for x
    x = 242,300,356/10,640
  6. Step 6: Final answer
    x = 22,772.59

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.