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Finding the Third Proportional to 10,729 and 15,709.50

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Solution

The third proportional to 10,729 and 15,709.50 is: 23,001.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,729 : 15,709.50 = 15,709.50 : x
  2. Step 2: Convert to fraction form
    10,729/15,709.50 = 15,709.50/x
  3. Step 3: Cross multiply
    10,729x = 15,709.50 × 15,709.50
  4. Step 4: Simplify right side
    10,729x = 246,788,390.25
  5. Step 5: Solve for x
    x = 246,788,390.25/10,729
  6. Step 6: Final answer
    x = 23,001.99

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.