Home / 13,845.06-20,770.70-3,983.58

Finding the Fourth Proportional to 13,845.06, 20,770.70 and 3,983.58

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Solution

The fourth proportional to 13,845.06, 20,770.70 and 3,983.58 is: 5,976.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.06 : 20,770.70 = 3,983.58 : x
  2. Step 2: Convert to fraction form
    13,845.06/20,770.70 = 3,983.58/x
  3. Step 3: Cross multiply
    13,845.06x = 20,770.70 × 3,983.58
  4. Step 4: Simplify right side
    13,845.06x = 82,741,725.19
  5. Step 5: Solve for x
    x = 82,741,725.19/13,845.06
  6. Step 6: Final answer
    x = 5,976.26

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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.