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Finding the Third Proportional to 7,215.75 and 9,551.25

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Solution

The third proportional to 7,215.75 and 9,551.25 is: 12,642.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.75 : 9,551.25 = 9,551.25 : x
  2. Step 2: Convert to fraction form
    7,215.75/9,551.25 = 9,551.25/x
  3. Step 3: Cross multiply
    7,215.75x = 9,551.25 × 9,551.25
  4. Step 4: Simplify right side
    7,215.75x = 91,226,376.56
  5. Step 5: Solve for x
    x = 91,226,376.56/7,215.75
  6. Step 6: Final answer
    x = 12,642.67

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.