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Finding the Third Proportional to 12,130 and 19,175

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Solution

The third proportional to 12,130 and 19,175 is: 30,311.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130 : 19,175 = 19,175 : x
  2. Step 2: Convert to fraction form
    12,130/19,175 = 19,175/x
  3. Step 3: Cross multiply
    12,130x = 19,175 × 19,175
  4. Step 4: Simplify right side
    12,130x = 367,680,625
  5. Step 5: Solve for x
    x = 367,680,625/12,130
  6. Step 6: Final answer
    x = 30,311.68

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.