Home / 7,415.45-11,115.42-2,481.03

Finding the Fourth Proportional to 7,415.45, 11,115.42 and 2,481.03

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Solution

The fourth proportional to 7,415.45, 11,115.42 and 2,481.03 is: 3,718.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.45 : 11,115.42 = 2,481.03 : x
  2. Step 2: Convert to fraction form
    7,415.45/11,115.42 = 2,481.03/x
  3. Step 3: Cross multiply
    7,415.45x = 11,115.42 × 2,481.03
  4. Step 4: Simplify right side
    7,415.45x = 27,577,690.48
  5. Step 5: Solve for x
    x = 27,577,690.48/7,415.45
  6. Step 6: Final answer
    x = 3,718.95

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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.