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Finding the Third Proportional to 7,140 and 16,682

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Solution

The third proportional to 7,140 and 16,682 is: 38,976.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140 : 16,682 = 16,682 : x
  2. Step 2: Convert to fraction form
    7,140/16,682 = 16,682/x
  3. Step 3: Cross multiply
    7,140x = 16,682 × 16,682
  4. Step 4: Simplify right side
    7,140x = 278,289,124
  5. Step 5: Solve for x
    x = 278,289,124/7,140
  6. Step 6: Final answer
    x = 38,976.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.