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Finding the Third Proportional to 8,803.69 and 18,991.13

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Solution

The third proportional to 8,803.69 and 18,991.13 is: 40,967.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,803.69 : 18,991.13 = 18,991.13 : x
  2. Step 2: Convert to fraction form
    8,803.69/18,991.13 = 18,991.13/x
  3. Step 3: Cross multiply
    8,803.69x = 18,991.13 × 18,991.13
  4. Step 4: Simplify right side
    8,803.69x = 360,662,828.77
  5. Step 5: Solve for x
    x = 360,662,828.77/8,803.69
  6. Step 6: Final answer
    x = 40,967.25

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.