Home / 8,108.11-12,155.68-3,176.83

Finding the Fourth Proportional to 8,108.11, 12,155.68 and 3,176.83

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Solution

The fourth proportional to 8,108.11, 12,155.68 and 3,176.83 is: 4,762.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.11 : 12,155.68 = 3,176.83 : x
  2. Step 2: Convert to fraction form
    8,108.11/12,155.68 = 3,176.83/x
  3. Step 3: Cross multiply
    8,108.11x = 12,155.68 × 3,176.83
  4. Step 4: Simplify right side
    8,108.11x = 38,616,528.89
  5. Step 5: Solve for x
    x = 38,616,528.89/8,108.11
  6. Step 6: Final answer
    x = 4,762.70

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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.