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Finding the Third Proportional to 10,121 and 14,827

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Solution

The third proportional to 10,121 and 14,827 is: 21,721.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121 : 14,827 = 14,827 : x
  2. Step 2: Convert to fraction form
    10,121/14,827 = 14,827/x
  3. Step 3: Cross multiply
    10,121x = 14,827 × 14,827
  4. Step 4: Simplify right side
    10,121x = 219,839,929
  5. Step 5: Solve for x
    x = 219,839,929/10,121
  6. Step 6: Final answer
    x = 21,721.17

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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.