Home / 8,209.32-12,315.92-2,662.66

Finding the Fourth Proportional to 8,209.32, 12,315.92 and 2,662.66

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Solution

The fourth proportional to 8,209.32, 12,315.92 and 2,662.66 is: 3,994.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,209.32 : 12,315.92 = 2,662.66 : x
  2. Step 2: Convert to fraction form
    8,209.32/12,315.92 = 2,662.66/x
  3. Step 3: Cross multiply
    8,209.32x = 12,315.92 × 2,662.66
  4. Step 4: Simplify right side
    8,209.32x = 32,793,107.55
  5. Step 5: Solve for x
    x = 32,793,107.55/8,209.32
  6. Step 6: Final answer
    x = 3,994.62

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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.