Home / 7,415.61-11,121.62-3,464.37

Finding the Fourth Proportional to 7,415.61, 11,121.62 and 3,464.37

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Solution

The fourth proportional to 7,415.61, 11,121.62 and 3,464.37 is: 5,195.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.61 : 11,121.62 = 3,464.37 : x
  2. Step 2: Convert to fraction form
    7,415.61/11,121.62 = 3,464.37/x
  3. Step 3: Cross multiply
    7,415.61x = 11,121.62 × 3,464.37
  4. Step 4: Simplify right side
    7,415.61x = 38,529,389.36
  5. Step 5: Solve for x
    x = 38,529,389.36/7,415.61
  6. Step 6: Final answer
    x = 5,195.71

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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.