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Finding the Third Proportional to 12,604 and 15,416

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Solution

The third proportional to 12,604 and 15,416 is: 18,855.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,604 : 15,416 = 15,416 : x
  2. Step 2: Convert to fraction form
    12,604/15,416 = 15,416/x
  3. Step 3: Cross multiply
    12,604x = 15,416 × 15,416
  4. Step 4: Simplify right side
    12,604x = 237,653,056
  5. Step 5: Solve for x
    x = 237,653,056/12,604
  6. Step 6: Final answer
    x = 18,855.37

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.