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Finding the Third Proportional to 12,072 and 18,459

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Solution

The third proportional to 12,072 and 18,459 is: 28,225.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072 : 18,459 = 18,459 : x
  2. Step 2: Convert to fraction form
    12,072/18,459 = 18,459/x
  3. Step 3: Cross multiply
    12,072x = 18,459 × 18,459
  4. Step 4: Simplify right side
    12,072x = 340,734,681
  5. Step 5: Solve for x
    x = 340,734,681/12,072
  6. Step 6: Final answer
    x = 28,225.21

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.