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Finding the Third Proportional to 7,116 and 14,778

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Solution

The third proportional to 7,116 and 14,778 is: 30,689.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,116 : 14,778 = 14,778 : x
  2. Step 2: Convert to fraction form
    7,116/14,778 = 14,778/x
  3. Step 3: Cross multiply
    7,116x = 14,778 × 14,778
  4. Step 4: Simplify right side
    7,116x = 218,389,284
  5. Step 5: Solve for x
    x = 218,389,284/7,116
  6. Step 6: Final answer
    x = 30,689.89

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.