Home / 14,149.94-21,222.18-13,447.49

Finding the Fourth Proportional to 14,149.94, 21,222.18 and 13,447.49

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Solution

The fourth proportional to 14,149.94, 21,222.18 and 13,447.49 is: 20,168.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,149.94 : 21,222.18 = 13,447.49 : x
  2. Step 2: Convert to fraction form
    14,149.94/21,222.18 = 13,447.49/x
  3. Step 3: Cross multiply
    14,149.94x = 21,222.18 × 13,447.49
  4. Step 4: Simplify right side
    14,149.94x = 285,384,947.22
  5. Step 5: Solve for x
    x = 285,384,947.22/14,149.94
  6. Step 6: Final answer
    x = 20,168.64

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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.