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Finding the Third Proportional to 5,535 and 8,609

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Solution

The third proportional to 5,535 and 8,609 is: 13,390.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,535 : 8,609 = 8,609 : x
  2. Step 2: Convert to fraction form
    5,535/8,609 = 8,609/x
  3. Step 3: Cross multiply
    5,535x = 8,609 × 8,609
  4. Step 4: Simplify right side
    5,535x = 74,114,881
  5. Step 5: Solve for x
    x = 74,114,881/5,535
  6. Step 6: Final answer
    x = 13,390.22

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.