Home / 12,571.80-18,857.73-4,249.59

Finding the Fourth Proportional to 12,571.80, 18,857.73 and 4,249.59

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Solution

The fourth proportional to 12,571.80, 18,857.73 and 4,249.59 is: 6,374.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,571.80 : 18,857.73 = 4,249.59 : x
  2. Step 2: Convert to fraction form
    12,571.80/18,857.73 = 4,249.59/x
  3. Step 3: Cross multiply
    12,571.80x = 18,857.73 × 4,249.59
  4. Step 4: Simplify right side
    12,571.80x = 80,137,620.83
  5. Step 5: Solve for x
    x = 80,137,620.83/12,571.80
  6. Step 6: Final answer
    x = 6,374.40

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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.