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Finding the Third Proportional to 11,378 and 15,483

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Solution

The third proportional to 11,378 and 15,483 is: 21,069.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,378 : 15,483 = 15,483 : x
  2. Step 2: Convert to fraction form
    11,378/15,483 = 15,483/x
  3. Step 3: Cross multiply
    11,378x = 15,483 × 15,483
  4. Step 4: Simplify right side
    11,378x = 239,723,289
  5. Step 5: Solve for x
    x = 239,723,289/11,378
  6. Step 6: Final answer
    x = 21,069.02

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.