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Finding the Third Proportional to 8,413 and 13,013

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Solution

The third proportional to 8,413 and 13,013 is: 20,128.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,413 : 13,013 = 13,013 : x
  2. Step 2: Convert to fraction form
    8,413/13,013 = 13,013/x
  3. Step 3: Cross multiply
    8,413x = 13,013 × 13,013
  4. Step 4: Simplify right side
    8,413x = 169,338,169
  5. Step 5: Solve for x
    x = 169,338,169/8,413
  6. Step 6: Final answer
    x = 20,128.16

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.