Home / 7,415.36-11,121.24-3,464.12

Finding the Fourth Proportional to 7,415.36, 11,121.24 and 3,464.12

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Solution

The fourth proportional to 7,415.36, 11,121.24 and 3,464.12 is: 5,195.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.36 : 11,121.24 = 3,464.12 : x
  2. Step 2: Convert to fraction form
    7,415.36/11,121.24 = 3,464.12/x
  3. Step 3: Cross multiply
    7,415.36x = 11,121.24 × 3,464.12
  4. Step 4: Simplify right side
    7,415.36x = 38,525,309.91
  5. Step 5: Solve for x
    x = 38,525,309.91/7,415.36
  6. Step 6: Final answer
    x = 5,195.34

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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.