Home / 8,079.38-12,122.58-4,384.22

Finding the Fourth Proportional to 8,079.38, 12,122.58 and 4,384.22

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Solution

The fourth proportional to 8,079.38, 12,122.58 and 4,384.22 is: 6,578.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079.38 : 12,122.58 = 4,384.22 : x
  2. Step 2: Convert to fraction form
    8,079.38/12,122.58 = 4,384.22/x
  3. Step 3: Cross multiply
    8,079.38x = 12,122.58 × 4,384.22
  4. Step 4: Simplify right side
    8,079.38x = 53,148,057.69
  5. Step 5: Solve for x
    x = 53,148,057.69/8,079.38
  6. Step 6: Final answer
    x = 6,578.23

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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.