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Finding the Fourth Proportional to 6,399.09, 9,582.03 and 5,480.55

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Solution

The fourth proportional to 6,399.09, 9,582.03 and 5,480.55 is: 8,206.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,399.09 : 9,582.03 = 5,480.55 : x
  2. Step 2: Convert to fraction form
    6,399.09/9,582.03 = 5,480.55/x
  3. Step 3: Cross multiply
    6,399.09x = 9,582.03 × 5,480.55
  4. Step 4: Simplify right side
    6,399.09x = 52,514,794.52
  5. Step 5: Solve for x
    x = 52,514,794.52/6,399.09
  6. Step 6: Final answer
    x = 8,206.60

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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.