Home / 8,351.68-12,529.05-2,805.61

Finding the Fourth Proportional to 8,351.68, 12,529.05 and 2,805.61

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Solution

The fourth proportional to 8,351.68, 12,529.05 and 2,805.61 is: 4,208.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,351.68 : 12,529.05 = 2,805.61 : x
  2. Step 2: Convert to fraction form
    8,351.68/12,529.05 = 2,805.61/x
  3. Step 3: Cross multiply
    8,351.68x = 12,529.05 × 2,805.61
  4. Step 4: Simplify right side
    8,351.68x = 35,151,627.97
  5. Step 5: Solve for x
    x = 35,151,627.97/8,351.68
  6. Step 6: Final answer
    x = 4,208.93

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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.