Home / 14,379.94-21,571.73-3,991.69

Finding the Fourth Proportional to 14,379.94, 21,571.73 and 3,991.69

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Solution

The fourth proportional to 14,379.94, 21,571.73 and 3,991.69 is: 5,988.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,379.94 : 21,571.73 = 3,991.69 : x
  2. Step 2: Convert to fraction form
    14,379.94/21,571.73 = 3,991.69/x
  3. Step 3: Cross multiply
    14,379.94x = 21,571.73 × 3,991.69
  4. Step 4: Simplify right side
    14,379.94x = 86,107,614.97
  5. Step 5: Solve for x
    x = 86,107,614.97/14,379.94
  6. Step 6: Final answer
    x = 5,988.04

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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.