Home / 13,855.44-20,783.16-5,086.56

Finding the Fourth Proportional to 13,855.44, 20,783.16 and 5,086.56

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Solution

The fourth proportional to 13,855.44, 20,783.16 and 5,086.56 is: 7,629.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,855.44 : 20,783.16 = 5,086.56 : x
  2. Step 2: Convert to fraction form
    13,855.44/20,783.16 = 5,086.56/x
  3. Step 3: Cross multiply
    13,855.44x = 20,783.16 × 5,086.56
  4. Step 4: Simplify right side
    13,855.44x = 105,714,790.33
  5. Step 5: Solve for x
    x = 105,714,790.33/13,855.44
  6. Step 6: Final answer
    x = 7,629.84

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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.