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Finding the Third Proportional to 5,457 and 13,197

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Solution

The third proportional to 5,457 and 13,197 is: 31,915.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457 : 13,197 = 13,197 : x
  2. Step 2: Convert to fraction form
    5,457/13,197 = 13,197/x
  3. Step 3: Cross multiply
    5,457x = 13,197 × 13,197
  4. Step 4: Simplify right side
    5,457x = 174,160,809
  5. Step 5: Solve for x
    x = 174,160,809/5,457
  6. Step 6: Final answer
    x = 31,915.12

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.