Home / 8,255.16-12,384.68-2,708.51

Finding the Fourth Proportional to 8,255.16, 12,384.68 and 2,708.51

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Solution

The fourth proportional to 8,255.16, 12,384.68 and 2,708.51 is: 4,063.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.16 : 12,384.68 = 2,708.51 : x
  2. Step 2: Convert to fraction form
    8,255.16/12,384.68 = 2,708.51/x
  3. Step 3: Cross multiply
    8,255.16x = 12,384.68 × 2,708.51
  4. Step 4: Simplify right side
    8,255.16x = 33,543,954.16
  5. Step 5: Solve for x
    x = 33,543,954.16/8,255.16
  6. Step 6: Final answer
    x = 4,063.39

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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.