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Finding the Fourth Proportional to 8,453.54, 12,680.22 and 2,609.48

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Solution

The fourth proportional to 8,453.54, 12,680.22 and 2,609.48 is: 3,914.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,453.54 : 12,680.22 = 2,609.48 : x
  2. Step 2: Convert to fraction form
    8,453.54/12,680.22 = 2,609.48/x
  3. Step 3: Cross multiply
    8,453.54x = 12,680.22 × 2,609.48
  4. Step 4: Simplify right side
    8,453.54x = 33,088,780.49
  5. Step 5: Solve for x
    x = 33,088,780.49/8,453.54
  6. Step 6: Final answer
    x = 3,914.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.