Home / 8,137.18-12,206.67-3,206.17

Finding the Fourth Proportional to 8,137.18, 12,206.67 and 3,206.17

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Solution

The fourth proportional to 8,137.18, 12,206.67 and 3,206.17 is: 4,809.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,137.18 : 12,206.67 = 3,206.17 : x
  2. Step 2: Convert to fraction form
    8,137.18/12,206.67 = 3,206.17/x
  3. Step 3: Cross multiply
    8,137.18x = 12,206.67 × 3,206.17
  4. Step 4: Simplify right side
    8,137.18x = 39,136,659.15
  5. Step 5: Solve for x
    x = 39,136,659.15/8,137.18
  6. Step 6: Final answer
    x = 4,809.61

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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.