Home / 8,589.43-12,880.07-3,326.91

Finding the Fourth Proportional to 8,589.43, 12,880.07 and 3,326.91

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Solution

The fourth proportional to 8,589.43, 12,880.07 and 3,326.91 is: 4,988.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,589.43 : 12,880.07 = 3,326.91 : x
  2. Step 2: Convert to fraction form
    8,589.43/12,880.07 = 3,326.91/x
  3. Step 3: Cross multiply
    8,589.43x = 12,880.07 × 3,326.91
  4. Step 4: Simplify right side
    8,589.43x = 42,850,769.28
  5. Step 5: Solve for x
    x = 42,850,769.28/8,589.43
  6. Step 6: Final answer
    x = 4,988.78

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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.