Home / 8,435.91-12,660.20-3,176.11

Finding the Fourth Proportional to 8,435.91, 12,660.20 and 3,176.11

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Solution

The fourth proportional to 8,435.91, 12,660.20 and 3,176.11 is: 4,766.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,435.91 : 12,660.20 = 3,176.11 : x
  2. Step 2: Convert to fraction form
    8,435.91/12,660.20 = 3,176.11/x
  3. Step 3: Cross multiply
    8,435.91x = 12,660.20 × 3,176.11
  4. Step 4: Simplify right side
    8,435.91x = 40,210,199.68
  5. Step 5: Solve for x
    x = 40,210,199.68/8,435.91
  6. Step 6: Final answer
    x = 4,766.55

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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.