Home / 13,928.74-20,893.15-3,540.49

Finding the Fourth Proportional to 13,928.74, 20,893.15 and 3,540.49

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Solution

The fourth proportional to 13,928.74, 20,893.15 and 3,540.49 is: 5,310.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.74 : 20,893.15 = 3,540.49 : x
  2. Step 2: Convert to fraction form
    13,928.74/20,893.15 = 3,540.49/x
  3. Step 3: Cross multiply
    13,928.74x = 20,893.15 × 3,540.49
  4. Step 4: Simplify right side
    13,928.74x = 73,971,940.84
  5. Step 5: Solve for x
    x = 73,971,940.84/13,928.74
  6. Step 6: Final answer
    x = 5,310.74

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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.