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Finding the Third Proportional to 8,484 and 11,429

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Solution

The third proportional to 8,484 and 11,429 is: 15,396.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,484 : 11,429 = 11,429 : x
  2. Step 2: Convert to fraction form
    8,484/11,429 = 11,429/x
  3. Step 3: Cross multiply
    8,484x = 11,429 × 11,429
  4. Step 4: Simplify right side
    8,484x = 130,622,041
  5. Step 5: Solve for x
    x = 130,622,041/8,484
  6. Step 6: Final answer
    x = 15,396.28

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.