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Finding the Third Proportional to 7,122 and 9,952.50

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Solution

The third proportional to 7,122 and 9,952.50 is: 13,907.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122 : 9,952.50 = 9,952.50 : x
  2. Step 2: Convert to fraction form
    7,122/9,952.50 = 9,952.50/x
  3. Step 3: Cross multiply
    7,122x = 9,952.50 × 9,952.50
  4. Step 4: Simplify right side
    7,122x = 99,052,256.25
  5. Step 5: Solve for x
    x = 99,052,256.25/7,122
  6. Step 6: Final answer
    x = 13,907.93

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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.