Home / 13,559.72-20,340.30-4,325

Finding the Fourth Proportional to 13,559.72, 20,340.30 and 4,325

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Solution

The fourth proportional to 13,559.72, 20,340.30 and 4,325 is: 6,487.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,559.72 : 20,340.30 = 4,325 : x
  2. Step 2: Convert to fraction form
    13,559.72/20,340.30 = 4,325/x
  3. Step 3: Cross multiply
    13,559.72x = 20,340.30 × 4,325
  4. Step 4: Simplify right side
    13,559.72x = 87,971,797.50
  5. Step 5: Solve for x
    x = 87,971,797.50/13,559.72
  6. Step 6: Final answer
    x = 6,487.73

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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.