Home / 12,771.62-19,157.42-4,007.22

Finding the Fourth Proportional to 12,771.62, 19,157.42 and 4,007.22

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Solution

The fourth proportional to 12,771.62, 19,157.42 and 4,007.22 is: 6,010.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771.62 : 19,157.42 = 4,007.22 : x
  2. Step 2: Convert to fraction form
    12,771.62/19,157.42 = 4,007.22/x
  3. Step 3: Cross multiply
    12,771.62x = 19,157.42 × 4,007.22
  4. Step 4: Simplify right side
    12,771.62x = 76,767,976.54
  5. Step 5: Solve for x
    x = 76,767,976.54/12,771.62
  6. Step 6: Final answer
    x = 6,010.82

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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.