Home / 13,783.58-20,675.38-3,922.86

Finding the Fourth Proportional to 13,783.58, 20,675.38 and 3,922.86

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Solution

The fourth proportional to 13,783.58, 20,675.38 and 3,922.86 is: 5,884.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,783.58 : 20,675.38 = 3,922.86 : x
  2. Step 2: Convert to fraction form
    13,783.58/20,675.38 = 3,922.86/x
  3. Step 3: Cross multiply
    13,783.58x = 20,675.38 × 3,922.86
  4. Step 4: Simplify right side
    13,783.58x = 81,106,579.97
  5. Step 5: Solve for x
    x = 81,106,579.97/13,783.58
  6. Step 6: Final answer
    x = 5,884.29

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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.