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Finding the Third Proportional to 12,350 and 15,621

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Solution

The third proportional to 12,350 and 15,621 is: 19,758.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,350 : 15,621 = 15,621 : x
  2. Step 2: Convert to fraction form
    12,350/15,621 = 15,621/x
  3. Step 3: Cross multiply
    12,350x = 15,621 × 15,621
  4. Step 4: Simplify right side
    12,350x = 244,015,641
  5. Step 5: Solve for x
    x = 244,015,641/12,350
  6. Step 6: Final answer
    x = 19,758.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.