Home / 8,080.43-12,120.27-2,816.63

Finding the Fourth Proportional to 8,080.43, 12,120.27 and 2,816.63

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Solution

The fourth proportional to 8,080.43, 12,120.27 and 2,816.63 is: 4,224.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,080.43 : 12,120.27 = 2,816.63 : x
  2. Step 2: Convert to fraction form
    8,080.43/12,120.27 = 2,816.63/x
  3. Step 3: Cross multiply
    8,080.43x = 12,120.27 × 2,816.63
  4. Step 4: Simplify right side
    8,080.43x = 34,138,316.09
  5. Step 5: Solve for x
    x = 34,138,316.09/8,080.43
  6. Step 6: Final answer
    x = 4,224.82

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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.