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Finding the Third Proportional to 10,378.50 and 14,919

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Solution

The third proportional to 10,378.50 and 14,919 is: 21,445.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.50 : 14,919 = 14,919 : x
  2. Step 2: Convert to fraction form
    10,378.50/14,919 = 14,919/x
  3. Step 3: Cross multiply
    10,378.50x = 14,919 × 14,919
  4. Step 4: Simplify right side
    10,378.50x = 222,576,561
  5. Step 5: Solve for x
    x = 222,576,561/10,378.50
  6. Step 6: Final answer
    x = 21,445.93

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.