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Finding the Third Proportional to 7,990 and 15,254

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Solution

The third proportional to 7,990 and 15,254 is: 29,121.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990 : 15,254 = 15,254 : x
  2. Step 2: Convert to fraction form
    7,990/15,254 = 15,254/x
  3. Step 3: Cross multiply
    7,990x = 15,254 × 15,254
  4. Step 4: Simplify right side
    7,990x = 232,684,516
  5. Step 5: Solve for x
    x = 232,684,516/7,990
  6. Step 6: Final answer
    x = 29,121.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.