Home / 8,137.32-12,205.17-5,521.61

Finding the Fourth Proportional to 8,137.32, 12,205.17 and 5,521.61

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Solution

The fourth proportional to 8,137.32, 12,205.17 and 5,521.61 is: 8,281.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,137.32 : 12,205.17 = 5,521.61 : x
  2. Step 2: Convert to fraction form
    8,137.32/12,205.17 = 5,521.61/x
  3. Step 3: Cross multiply
    8,137.32x = 12,205.17 × 5,521.61
  4. Step 4: Simplify right side
    8,137.32x = 67,392,127.70
  5. Step 5: Solve for x
    x = 67,392,127.70/8,137.32
  6. Step 6: Final answer
    x = 8,281.86

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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.