Home / 7,415.82-11,123.72-2,485.47

Finding the Fourth Proportional to 7,415.82, 11,123.72 and 2,485.47

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Solution

The fourth proportional to 7,415.82, 11,123.72 and 2,485.47 is: 3,728.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.82 : 11,123.72 = 2,485.47 : x
  2. Step 2: Convert to fraction form
    7,415.82/11,123.72 = 2,485.47/x
  3. Step 3: Cross multiply
    7,415.82x = 11,123.72 × 2,485.47
  4. Step 4: Simplify right side
    7,415.82x = 27,647,616.73
  5. Step 5: Solve for x
    x = 27,647,616.73/7,415.82
  6. Step 6: Final answer
    x = 3,728.20

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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.