Home / 8,080.35-12,119.61-2,814.47

Finding the Fourth Proportional to 8,080.35, 12,119.61 and 2,814.47

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Solution

The fourth proportional to 8,080.35, 12,119.61 and 2,814.47 is: 4,221.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,080.35 : 12,119.61 = 2,814.47 : x
  2. Step 2: Convert to fraction form
    8,080.35/12,119.61 = 2,814.47/x
  3. Step 3: Cross multiply
    8,080.35x = 12,119.61 × 2,814.47
  4. Step 4: Simplify right side
    8,080.35x = 34,110,264.68
  5. Step 5: Solve for x
    x = 34,110,264.68/8,080.35
  6. Step 6: Final answer
    x = 4,221.39

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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.