Home / 8,080.46-12,117.69-2,814.12

Finding the Fourth Proportional to 8,080.46, 12,117.69 and 2,814.12

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Solution

The fourth proportional to 8,080.46, 12,117.69 and 2,814.12 is: 4,220.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,080.46 : 12,117.69 = 2,814.12 : x
  2. Step 2: Convert to fraction form
    8,080.46/12,117.69 = 2,814.12/x
  3. Step 3: Cross multiply
    8,080.46x = 12,117.69 × 2,814.12
  4. Step 4: Simplify right side
    8,080.46x = 34,100,559.12
  5. Step 5: Solve for x
    x = 34,100,559.12/8,080.46
  6. Step 6: Final answer
    x = 4,220.13

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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.