Home / 14,273.28-19,571.76-13,778.88

Finding the Fourth Proportional to 14,273.28, 19,571.76 and 13,778.88

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Solution

The fourth proportional to 14,273.28, 19,571.76 and 13,778.88 is: 18,893.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,273.28 : 19,571.76 = 13,778.88 : x
  2. Step 2: Convert to fraction form
    14,273.28/19,571.76 = 13,778.88/x
  3. Step 3: Cross multiply
    14,273.28x = 19,571.76 × 13,778.88
  4. Step 4: Simplify right side
    14,273.28x = 269,676,932.43
  5. Step 5: Solve for x
    x = 269,676,932.43/14,273.28
  6. Step 6: Final answer
    x = 18,893.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.