Home / 8,325.92-12,479.46-3,389.36

Finding the Fourth Proportional to 8,325.92, 12,479.46 and 3,389.36

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Solution

The fourth proportional to 8,325.92, 12,479.46 and 3,389.36 is: 5,080.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,325.92 : 12,479.46 = 3,389.36 : x
  2. Step 2: Convert to fraction form
    8,325.92/12,479.46 = 3,389.36/x
  3. Step 3: Cross multiply
    8,325.92x = 12,479.46 × 3,389.36
  4. Step 4: Simplify right side
    8,325.92x = 42,297,382.55
  5. Step 5: Solve for x
    x = 42,297,382.55/8,325.92
  6. Step 6: Final answer
    x = 5,080.21

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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.