Home / 8,257.62-12,386.84-2,708.72

Finding the Fourth Proportional to 8,257.62, 12,386.84 and 2,708.72

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Solution

The fourth proportional to 8,257.62, 12,386.84 and 2,708.72 is: 4,063.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,257.62 : 12,386.84 = 2,708.72 : x
  2. Step 2: Convert to fraction form
    8,257.62/12,386.84 = 2,708.72/x
  3. Step 3: Cross multiply
    8,257.62x = 12,386.84 × 2,708.72
  4. Step 4: Simplify right side
    8,257.62x = 33,552,481.24
  5. Step 5: Solve for x
    x = 33,552,481.24/8,257.62
  6. Step 6: Final answer
    x = 4,063.21

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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.