Home / 8,555.44-11,809.84-5,198.80

Finding the Fourth Proportional to 8,555.44, 11,809.84 and 5,198.80

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Solution

The fourth proportional to 8,555.44, 11,809.84 and 5,198.80 is: 7,176.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.44 : 11,809.84 = 5,198.80 : x
  2. Step 2: Convert to fraction form
    8,555.44/11,809.84 = 5,198.80/x
  3. Step 3: Cross multiply
    8,555.44x = 11,809.84 × 5,198.80
  4. Step 4: Simplify right side
    8,555.44x = 61,396,937.14
  5. Step 5: Solve for x
    x = 61,396,937.14/8,555.44
  6. Step 6: Final answer
    x = 7,176.37

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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.