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Finding the Third Proportional to 7,955 and 12,636

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Solution

The third proportional to 7,955 and 12,636 is: 20,071.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,955 : 12,636 = 12,636 : x
  2. Step 2: Convert to fraction form
    7,955/12,636 = 12,636/x
  3. Step 3: Cross multiply
    7,955x = 12,636 × 12,636
  4. Step 4: Simplify right side
    7,955x = 159,668,496
  5. Step 5: Solve for x
    x = 159,668,496/7,955
  6. Step 6: Final answer
    x = 20,071.46

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.