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Finding the Third Proportional to 15,572.25 and 16,908.75

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Solution

The third proportional to 15,572.25 and 16,908.75 is: 18,359.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,572.25 : 16,908.75 = 16,908.75 : x
  2. Step 2: Convert to fraction form
    15,572.25/16,908.75 = 16,908.75/x
  3. Step 3: Cross multiply
    15,572.25x = 16,908.75 × 16,908.75
  4. Step 4: Simplify right side
    15,572.25x = 285,905,826.56
  5. Step 5: Solve for x
    x = 285,905,826.56/15,572.25
  6. Step 6: Final answer
    x = 18,359.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.