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Finding the Third Proportional to 8,918.86 and 19,603.27

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Solution

The third proportional to 8,918.86 and 19,603.27 is: 43,087.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.86 : 19,603.27 = 19,603.27 : x
  2. Step 2: Convert to fraction form
    8,918.86/19,603.27 = 19,603.27/x
  3. Step 3: Cross multiply
    8,918.86x = 19,603.27 × 19,603.27
  4. Step 4: Simplify right side
    8,918.86x = 384,288,023.16
  5. Step 5: Solve for x
    x = 384,288,023.16/8,918.86
  6. Step 6: Final answer
    x = 43,087.13

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.