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Finding the Third Proportional to 8,136 and 12,703.50

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Solution

The third proportional to 8,136 and 12,703.50 is: 19,835.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136 : 12,703.50 = 12,703.50 : x
  2. Step 2: Convert to fraction form
    8,136/12,703.50 = 12,703.50/x
  3. Step 3: Cross multiply
    8,136x = 12,703.50 × 12,703.50
  4. Step 4: Simplify right side
    8,136x = 161,378,912.25
  5. Step 5: Solve for x
    x = 161,378,912.25/8,136
  6. Step 6: Final answer
    x = 19,835.17

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.