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Finding the Third Proportional to 8,208 and 8,916.75

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Solution

The third proportional to 8,208 and 8,916.75 is: 9,686.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208 : 8,916.75 = 8,916.75 : x
  2. Step 2: Convert to fraction form
    8,208/8,916.75 = 8,916.75/x
  3. Step 3: Cross multiply
    8,208x = 8,916.75 × 8,916.75
  4. Step 4: Simplify right side
    8,208x = 79,508,430.56
  5. Step 5: Solve for x
    x = 79,508,430.56/8,208
  6. Step 6: Final answer
    x = 9,686.70

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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.