Home / 6,813.20-10,198.20-5,344.40

Finding the Fourth Proportional to 6,813.20, 10,198.20 and 5,344.40

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Solution

The fourth proportional to 6,813.20, 10,198.20 and 5,344.40 is: 7,999.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,813.20 : 10,198.20 = 5,344.40 : x
  2. Step 2: Convert to fraction form
    6,813.20/10,198.20 = 5,344.40/x
  3. Step 3: Cross multiply
    6,813.20x = 10,198.20 × 5,344.40
  4. Step 4: Simplify right side
    6,813.20x = 54,503,260.08
  5. Step 5: Solve for x
    x = 54,503,260.08/6,813.20
  6. Step 6: Final answer
    x = 7,999.66

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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.