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Finding the Third Proportional to 7,801.88 and 11,802.38

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Solution

The third proportional to 7,801.88 and 11,802.38 is: 17,854.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,801.88 : 11,802.38 = 11,802.38 : x
  2. Step 2: Convert to fraction form
    7,801.88/11,802.38 = 11,802.38/x
  3. Step 3: Cross multiply
    7,801.88x = 11,802.38 × 11,802.38
  4. Step 4: Simplify right side
    7,801.88x = 139,296,055.64
  5. Step 5: Solve for x
    x = 139,296,055.64/7,801.88
  6. Step 6: Final answer
    x = 17,854.18

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.