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Finding the Third Proportional to 7,953 and 11,170.50

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Solution

The third proportional to 7,953 and 11,170.50 is: 15,689.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,953 : 11,170.50 = 11,170.50 : x
  2. Step 2: Convert to fraction form
    7,953/11,170.50 = 11,170.50/x
  3. Step 3: Cross multiply
    7,953x = 11,170.50 × 11,170.50
  4. Step 4: Simplify right side
    7,953x = 124,780,070.25
  5. Step 5: Solve for x
    x = 124,780,070.25/7,953
  6. Step 6: Final answer
    x = 15,689.69

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.