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Finding the Third Proportional to 7,581 and 8,674.50

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Solution

The third proportional to 7,581 and 8,674.50 is: 9,925.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,581 : 8,674.50 = 8,674.50 : x
  2. Step 2: Convert to fraction form
    7,581/8,674.50 = 8,674.50/x
  3. Step 3: Cross multiply
    7,581x = 8,674.50 × 8,674.50
  4. Step 4: Simplify right side
    7,581x = 75,246,950.25
  5. Step 5: Solve for x
    x = 75,246,950.25/7,581
  6. Step 6: Final answer
    x = 9,925.73

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.