Home / 8,879.09-13,305.93-6,520.59

Finding the Fourth Proportional to 8,879.09, 13,305.93 and 6,520.59

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Solution

The fourth proportional to 8,879.09, 13,305.93 and 6,520.59 is: 9,771.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879.09 : 13,305.93 = 6,520.59 : x
  2. Step 2: Convert to fraction form
    8,879.09/13,305.93 = 6,520.59/x
  3. Step 3: Cross multiply
    8,879.09x = 13,305.93 × 6,520.59
  4. Step 4: Simplify right side
    8,879.09x = 86,762,514.10
  5. Step 5: Solve for x
    x = 86,762,514.10/8,879.09
  6. Step 6: Final answer
    x = 9,771.55

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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.