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Finding the Third Proportional to 12,135 and 18,370.50

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Solution

The third proportional to 12,135 and 18,370.50 is: 27,810.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135 : 18,370.50 = 18,370.50 : x
  2. Step 2: Convert to fraction form
    12,135/18,370.50 = 18,370.50/x
  3. Step 3: Cross multiply
    12,135x = 18,370.50 × 18,370.50
  4. Step 4: Simplify right side
    12,135x = 337,475,270.25
  5. Step 5: Solve for x
    x = 337,475,270.25/12,135
  6. Step 6: Final answer
    x = 27,810.08

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.