Home / 6,720.30-9,260.33-5,198.61

Finding the Fourth Proportional to 6,720.30, 9,260.33 and 5,198.61

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Solution

The fourth proportional to 6,720.30, 9,260.33 and 5,198.61 is: 7,163.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.30 : 9,260.33 = 5,198.61 : x
  2. Step 2: Convert to fraction form
    6,720.30/9,260.33 = 5,198.61/x
  3. Step 3: Cross multiply
    6,720.30x = 9,260.33 × 5,198.61
  4. Step 4: Simplify right side
    6,720.30x = 48,140,855.72
  5. Step 5: Solve for x
    x = 48,140,855.72/6,720.30
  6. Step 6: Final answer
    x = 7,163.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.