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Finding the Third Proportional to 12,450 and 16,428

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Solution

The third proportional to 12,450 and 16,428 is: 21,677.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450 : 16,428 = 16,428 : x
  2. Step 2: Convert to fraction form
    12,450/16,428 = 16,428/x
  3. Step 3: Cross multiply
    12,450x = 16,428 × 16,428
  4. Step 4: Simplify right side
    12,450x = 269,879,184
  5. Step 5: Solve for x
    x = 269,879,184/12,450
  6. Step 6: Final answer
    x = 21,677.04

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.