Home / 13,784.21-20,683.16-5,464.05

Finding the Fourth Proportional to 13,784.21, 20,683.16 and 5,464.05

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Solution

The fourth proportional to 13,784.21, 20,683.16 and 5,464.05 is: 8,198.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.21 : 20,683.16 = 5,464.05 : x
  2. Step 2: Convert to fraction form
    13,784.21/20,683.16 = 5,464.05/x
  3. Step 3: Cross multiply
    13,784.21x = 20,683.16 × 5,464.05
  4. Step 4: Simplify right side
    13,784.21x = 113,013,793.08
  5. Step 5: Solve for x
    x = 113,013,793.08/13,784.21
  6. Step 6: Final answer
    x = 8,198.79

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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.