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Finding the Third Proportional to 7,947 and 12,134.25

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Solution

The third proportional to 7,947 and 12,134.25 is: 18,527.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947 : 12,134.25 = 12,134.25 : x
  2. Step 2: Convert to fraction form
    7,947/12,134.25 = 12,134.25/x
  3. Step 3: Cross multiply
    7,947x = 12,134.25 × 12,134.25
  4. Step 4: Simplify right side
    7,947x = 147,240,023.06
  5. Step 5: Solve for x
    x = 147,240,023.06/7,947
  6. Step 6: Final answer
    x = 18,527.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.