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Finding the Third Proportional to 8,516 and 15,988

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Solution

The third proportional to 8,516 and 15,988 is: 30,015.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,516 : 15,988 = 15,988 : x
  2. Step 2: Convert to fraction form
    8,516/15,988 = 15,988/x
  3. Step 3: Cross multiply
    8,516x = 15,988 × 15,988
  4. Step 4: Simplify right side
    8,516x = 255,616,144
  5. Step 5: Solve for x
    x = 255,616,144/8,516
  6. Step 6: Final answer
    x = 30,015.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.88) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.