Home / 13,783.96-20,676.24-3,923.55

Finding the Fourth Proportional to 13,783.96, 20,676.24 and 3,923.55

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Solution

The fourth proportional to 13,783.96, 20,676.24 and 3,923.55 is: 5,885.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,783.96 : 20,676.24 = 3,923.55 : x
  2. Step 2: Convert to fraction form
    13,783.96/20,676.24 = 3,923.55/x
  3. Step 3: Cross multiply
    13,783.96x = 20,676.24 × 3,923.55
  4. Step 4: Simplify right side
    13,783.96x = 81,124,192.27
  5. Step 5: Solve for x
    x = 81,124,192.27/13,783.96
  6. Step 6: Final answer
    x = 5,885.41

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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.