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Finding the Third Proportional to 13,242 and 14,490

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Solution

The third proportional to 13,242 and 14,490 is: 15,855.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242 : 14,490 = 14,490 : x
  2. Step 2: Convert to fraction form
    13,242/14,490 = 14,490/x
  3. Step 3: Cross multiply
    13,242x = 14,490 × 14,490
  4. Step 4: Simplify right side
    13,242x = 209,960,100
  5. Step 5: Solve for x
    x = 209,960,100/13,242
  6. Step 6: Final answer
    x = 15,855.62

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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.