Home / 13,783.97-20,672.85-3,923.03

Finding the Fourth Proportional to 13,783.97, 20,672.85 and 3,923.03

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Solution

The fourth proportional to 13,783.97, 20,672.85 and 3,923.03 is: 5,883.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,783.97 : 20,672.85 = 3,923.03 : x
  2. Step 2: Convert to fraction form
    13,783.97/20,672.85 = 3,923.03/x
  3. Step 3: Cross multiply
    13,783.97x = 20,672.85 × 3,923.03
  4. Step 4: Simplify right side
    13,783.97x = 81,100,210.74
  5. Step 5: Solve for x
    x = 81,100,210.74/13,783.97
  6. Step 6: Final answer
    x = 5,883.66

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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.