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Finding the Third Proportional to 11,258 and 15,607

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Solution

The third proportional to 11,258 and 15,607 is: 21,636.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,258 : 15,607 = 15,607 : x
  2. Step 2: Convert to fraction form
    11,258/15,607 = 15,607/x
  3. Step 3: Cross multiply
    11,258x = 15,607 × 15,607
  4. Step 4: Simplify right side
    11,258x = 243,578,449
  5. Step 5: Solve for x
    x = 243,578,449/11,258
  6. Step 6: Final answer
    x = 21,636.03

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.