Home / 13,845.34-20,767.29-3,984.23

Finding the Fourth Proportional to 13,845.34, 20,767.29 and 3,984.23

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Solution

The fourth proportional to 13,845.34, 20,767.29 and 3,984.23 is: 5,976.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.34 : 20,767.29 = 3,984.23 : x
  2. Step 2: Convert to fraction form
    13,845.34/20,767.29 = 3,984.23/x
  3. Step 3: Cross multiply
    13,845.34x = 20,767.29 × 3,984.23
  4. Step 4: Simplify right side
    13,845.34x = 82,741,659.84
  5. Step 5: Solve for x
    x = 82,741,659.84/13,845.34
  6. Step 6: Final answer
    x = 5,976.14

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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.