Home / 13,784.48-20,676.77-3,923.84

Finding the Fourth Proportional to 13,784.48, 20,676.77 and 3,923.84

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Solution

The fourth proportional to 13,784.48, 20,676.77 and 3,923.84 is: 5,885.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.48 : 20,676.77 = 3,923.84 : x
  2. Step 2: Convert to fraction form
    13,784.48/20,676.77 = 3,923.84/x
  3. Step 3: Cross multiply
    13,784.48x = 20,676.77 × 3,923.84
  4. Step 4: Simplify right side
    13,784.48x = 81,132,383.98
  5. Step 5: Solve for x
    x = 81,132,383.98/13,784.48
  6. Step 6: Final answer
    x = 5,885.78

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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.