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Finding the Third Proportional to 7,695 and 9,868.50

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Solution

The third proportional to 7,695 and 9,868.50 is: 12,655.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,695 : 9,868.50 = 9,868.50 : x
  2. Step 2: Convert to fraction form
    7,695/9,868.50 = 9,868.50/x
  3. Step 3: Cross multiply
    7,695x = 9,868.50 × 9,868.50
  4. Step 4: Simplify right side
    7,695x = 97,387,292.25
  5. Step 5: Solve for x
    x = 97,387,292.25/7,695
  6. Step 6: Final answer
    x = 12,655.92

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.