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Finding the Third Proportional to 11,657 and 18,486.50

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Solution

The third proportional to 11,657 and 18,486.50 is: 29,317.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,657 : 18,486.50 = 18,486.50 : x
  2. Step 2: Convert to fraction form
    11,657/18,486.50 = 18,486.50/x
  3. Step 3: Cross multiply
    11,657x = 18,486.50 × 18,486.50
  4. Step 4: Simplify right side
    11,657x = 341,750,682.25
  5. Step 5: Solve for x
    x = 341,750,682.25/11,657
  6. Step 6: Final answer
    x = 29,317.21

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.