Home / 8,121.24-12,173.46-4,422.46

Finding the Fourth Proportional to 8,121.24, 12,173.46 and 4,422.46

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Solution

The fourth proportional to 8,121.24, 12,173.46 and 4,422.46 is: 6,629.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121.24 : 12,173.46 = 4,422.46 : x
  2. Step 2: Convert to fraction form
    8,121.24/12,173.46 = 4,422.46/x
  3. Step 3: Cross multiply
    8,121.24x = 12,173.46 × 4,422.46
  4. Step 4: Simplify right side
    8,121.24x = 53,836,639.91
  5. Step 5: Solve for x
    x = 53,836,639.91/8,121.24
  6. Step 6: Final answer
    x = 6,629.12

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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.