Home / 11,422.87-17,131.93-4,400.47

Finding the Fourth Proportional to 11,422.87, 17,131.93 and 4,400.47

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Solution

The fourth proportional to 11,422.87, 17,131.93 and 4,400.47 is: 6,599.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,422.87 : 17,131.93 = 4,400.47 : x
  2. Step 2: Convert to fraction form
    11,422.87/17,131.93 = 4,400.47/x
  3. Step 3: Cross multiply
    11,422.87x = 17,131.93 × 4,400.47
  4. Step 4: Simplify right side
    11,422.87x = 75,388,544.01
  5. Step 5: Solve for x
    x = 75,388,544.01/11,422.87
  6. Step 6: Final answer
    x = 6,599.79

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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.