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Finding the Third Proportional to 10,140 and 11,652

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Solution

The third proportional to 10,140 and 11,652 is: 13,389.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140 : 11,652 = 11,652 : x
  2. Step 2: Convert to fraction form
    10,140/11,652 = 11,652/x
  3. Step 3: Cross multiply
    10,140x = 11,652 × 11,652
  4. Step 4: Simplify right side
    10,140x = 135,769,104
  5. Step 5: Solve for x
    x = 135,769,104/10,140
  6. Step 6: Final answer
    x = 13,389.46

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.