Home / 8,391.04-12,589.44-3,197.68

Finding the Fourth Proportional to 8,391.04, 12,589.44 and 3,197.68

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Solution

The fourth proportional to 8,391.04, 12,589.44 and 3,197.68 is: 4,797.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391.04 : 12,589.44 = 3,197.68 : x
  2. Step 2: Convert to fraction form
    8,391.04/12,589.44 = 3,197.68/x
  3. Step 3: Cross multiply
    8,391.04x = 12,589.44 × 3,197.68
  4. Step 4: Simplify right side
    8,391.04x = 40,257,000.50
  5. Step 5: Solve for x
    x = 40,257,000.50/8,391.04
  6. Step 6: Final answer
    x = 4,797.62

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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.