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Finding the Third Proportional to 9,130 and 18,620

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Solution

The third proportional to 9,130 and 18,620 is: 37,974.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,130 : 18,620 = 18,620 : x
  2. Step 2: Convert to fraction form
    9,130/18,620 = 18,620/x
  3. Step 3: Cross multiply
    9,130x = 18,620 × 18,620
  4. Step 4: Simplify right side
    9,130x = 346,704,400
  5. Step 5: Solve for x
    x = 346,704,400/9,130
  6. Step 6: Final answer
    x = 37,974.19

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.