Home / 6,520.45-9,021.94-5,682.90

Finding the Fourth Proportional to 6,520.45, 9,021.94 and 5,682.90

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Solution

The fourth proportional to 6,520.45, 9,021.94 and 5,682.90 is: 7,863.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520.45 : 9,021.94 = 5,682.90 : x
  2. Step 2: Convert to fraction form
    6,520.45/9,021.94 = 5,682.90/x
  3. Step 3: Cross multiply
    6,520.45x = 9,021.94 × 5,682.90
  4. Step 4: Simplify right side
    6,520.45x = 51,270,778.97
  5. Step 5: Solve for x
    x = 51,270,778.97/6,520.45
  6. Step 6: Final answer
    x = 7,863.07

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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.