Home / 12,571.69-18,859.97-4,253.06

Finding the Fourth Proportional to 12,571.69, 18,859.97 and 4,253.06

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Solution

The fourth proportional to 12,571.69, 18,859.97 and 4,253.06 is: 6,380.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,571.69 : 18,859.97 = 4,253.06 : x
  2. Step 2: Convert to fraction form
    12,571.69/18,859.97 = 4,253.06/x
  3. Step 3: Cross multiply
    12,571.69x = 18,859.97 × 4,253.06
  4. Step 4: Simplify right side
    12,571.69x = 80,212,562.74
  5. Step 5: Solve for x
    x = 80,212,562.74/12,571.69
  6. Step 6: Final answer
    x = 6,380.41

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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.