Home / 11,382.20-17,075.70-3,591.80

Finding the Fourth Proportional to 11,382.20, 17,075.70 and 3,591.80

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Solution

The fourth proportional to 11,382.20, 17,075.70 and 3,591.80 is: 5,388.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,382.20 : 17,075.70 = 3,591.80 : x
  2. Step 2: Convert to fraction form
    11,382.20/17,075.70 = 3,591.80/x
  3. Step 3: Cross multiply
    11,382.20x = 17,075.70 × 3,591.80
  4. Step 4: Simplify right side
    11,382.20x = 61,332,499.26
  5. Step 5: Solve for x
    x = 61,332,499.26/11,382.20
  6. Step 6: Final answer
    x = 5,388.46

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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.