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Finding the Third Proportional to 11,688.75 and 18,802.13

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Solution

The third proportional to 11,688.75 and 18,802.13 is: 30,244.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.75 : 18,802.13 = 18,802.13 : x
  2. Step 2: Convert to fraction form
    11,688.75/18,802.13 = 18,802.13/x
  3. Step 3: Cross multiply
    11,688.75x = 18,802.13 × 18,802.13
  4. Step 4: Simplify right side
    11,688.75x = 353,519,904.52
  5. Step 5: Solve for x
    x = 353,519,904.52/11,688.75
  6. Step 6: Final answer
    x = 30,244.46

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.