Home / 8,520.20-11,759.62-4,984.28

Finding the Fourth Proportional to 8,520.20, 11,759.62 and 4,984.28

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Solution

The fourth proportional to 8,520.20, 11,759.62 and 4,984.28 is: 6,879.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.20 : 11,759.62 = 4,984.28 : x
  2. Step 2: Convert to fraction form
    8,520.20/11,759.62 = 4,984.28/x
  3. Step 3: Cross multiply
    8,520.20x = 11,759.62 × 4,984.28
  4. Step 4: Simplify right side
    8,520.20x = 58,613,238.77
  5. Step 5: Solve for x
    x = 58,613,238.77/8,520.20
  6. Step 6: Final answer
    x = 6,879.33

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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.