Home / 13,512.12-20,270.97-4,151.58

Finding the Fourth Proportional to 13,512.12, 20,270.97 and 4,151.58

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Solution

The fourth proportional to 13,512.12, 20,270.97 and 4,151.58 is: 6,228.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512.12 : 20,270.97 = 4,151.58 : x
  2. Step 2: Convert to fraction form
    13,512.12/20,270.97 = 4,151.58/x
  3. Step 3: Cross multiply
    13,512.12x = 20,270.97 × 4,151.58
  4. Step 4: Simplify right side
    13,512.12x = 84,156,553.63
  5. Step 5: Solve for x
    x = 84,156,553.63/13,512.12
  6. Step 6: Final answer
    x = 6,228.23

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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.