Home / 7,398.12-11,080.73-6,821.91

Finding the Fourth Proportional to 7,398.12, 11,080.73 and 6,821.91

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Solution

The fourth proportional to 7,398.12, 11,080.73 and 6,821.91 is: 10,217.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,398.12 : 11,080.73 = 6,821.91 : x
  2. Step 2: Convert to fraction form
    7,398.12/11,080.73 = 6,821.91/x
  3. Step 3: Cross multiply
    7,398.12x = 11,080.73 × 6,821.91
  4. Step 4: Simplify right side
    7,398.12x = 75,591,708.68
  5. Step 5: Solve for x
    x = 75,591,708.68/7,398.12
  6. Step 6: Final answer
    x = 10,217.69

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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.