Home / 13,961.21-20,942.72-6,170

Finding the Fourth Proportional to 13,961.21, 20,942.72 and 6,170

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Solution

The fourth proportional to 13,961.21, 20,942.72 and 6,170 is: 9,255.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,961.21 : 20,942.72 = 6,170 : x
  2. Step 2: Convert to fraction form
    13,961.21/20,942.72 = 6,170/x
  3. Step 3: Cross multiply
    13,961.21x = 20,942.72 × 6,170
  4. Step 4: Simplify right side
    13,961.21x = 129,216,582.40
  5. Step 5: Solve for x
    x = 129,216,582.40/13,961.21
  6. Step 6: Final answer
    x = 9,255.40

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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.