Home / 11,622.66-16,033.05-8,079.72

Finding the Fourth Proportional to 11,622.66, 16,033.05 and 8,079.72

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Solution

The fourth proportional to 11,622.66, 16,033.05 and 8,079.72 is: 11,145.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,622.66 : 16,033.05 = 8,079.72 : x
  2. Step 2: Convert to fraction form
    11,622.66/16,033.05 = 8,079.72/x
  3. Step 3: Cross multiply
    11,622.66x = 16,033.05 × 8,079.72
  4. Step 4: Simplify right side
    11,622.66x = 129,542,554.75
  5. Step 5: Solve for x
    x = 129,542,554.75/11,622.66
  6. Step 6: Final answer
    x = 11,145.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.