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Finding the Third Proportional to 7,403.91 and 16,121.53

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Solution

The third proportional to 7,403.91 and 16,121.53 is: 35,103.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,403.91 : 16,121.53 = 16,121.53 : x
  2. Step 2: Convert to fraction form
    7,403.91/16,121.53 = 16,121.53/x
  3. Step 3: Cross multiply
    7,403.91x = 16,121.53 × 16,121.53
  4. Step 4: Simplify right side
    7,403.91x = 259,903,769.84
  5. Step 5: Solve for x
    x = 259,903,769.84/7,403.91
  6. Step 6: Final answer
    x = 35,103.60

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.