Home / 13,784.84-20,674.16-3,923.90

Finding the Fourth Proportional to 13,784.84, 20,674.16 and 3,923.90

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Solution

The fourth proportional to 13,784.84, 20,674.16 and 3,923.90 is: 5,884.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.84 : 20,674.16 = 3,923.90 : x
  2. Step 2: Convert to fraction form
    13,784.84/20,674.16 = 3,923.90/x
  3. Step 3: Cross multiply
    13,784.84x = 20,674.16 × 3,923.90
  4. Step 4: Simplify right side
    13,784.84x = 81,123,336.42
  5. Step 5: Solve for x
    x = 81,123,336.42/13,784.84
  6. Step 6: Final answer
    x = 5,884.97

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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.