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Finding the Third Proportional to 15,312 and 16,752

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Solution

The third proportional to 15,312 and 16,752 is: 18,327.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312 : 16,752 = 16,752 : x
  2. Step 2: Convert to fraction form
    15,312/16,752 = 16,752/x
  3. Step 3: Cross multiply
    15,312x = 16,752 × 16,752
  4. Step 4: Simplify right side
    15,312x = 280,629,504
  5. Step 5: Solve for x
    x = 280,629,504/15,312
  6. Step 6: Final answer
    x = 18,327.42

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.