Home / 8,146.92-12,226.86-3,217.80

Finding the Fourth Proportional to 8,146.92, 12,226.86 and 3,217.80

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Solution

The fourth proportional to 8,146.92, 12,226.86 and 3,217.80 is: 4,829.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,146.92 : 12,226.86 = 3,217.80 : x
  2. Step 2: Convert to fraction form
    8,146.92/12,226.86 = 3,217.80/x
  3. Step 3: Cross multiply
    8,146.92x = 12,226.86 × 3,217.80
  4. Step 4: Simplify right side
    8,146.92x = 39,343,590.11
  5. Step 5: Solve for x
    x = 39,343,590.11/8,146.92
  6. Step 6: Final answer
    x = 4,829.26

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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.