Home / 8,151.38-12,228.30-4,205.06

Finding the Fourth Proportional to 8,151.38, 12,228.30 and 4,205.06

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Solution

The fourth proportional to 8,151.38, 12,228.30 and 4,205.06 is: 6,308.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.38 : 12,228.30 = 4,205.06 : x
  2. Step 2: Convert to fraction form
    8,151.38/12,228.30 = 4,205.06/x
  3. Step 3: Cross multiply
    8,151.38x = 12,228.30 × 4,205.06
  4. Step 4: Simplify right side
    8,151.38x = 51,420,735.20
  5. Step 5: Solve for x
    x = 51,420,735.20/8,151.38
  6. Step 6: Final answer
    x = 6,308.22

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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.