Home / 13,951.77-20,928.39-4,091.23

Finding the Fourth Proportional to 13,951.77, 20,928.39 and 4,091.23

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Solution

The fourth proportional to 13,951.77, 20,928.39 and 4,091.23 is: 6,137.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,951.77 : 20,928.39 = 4,091.23 : x
  2. Step 2: Convert to fraction form
    13,951.77/20,928.39 = 4,091.23/x
  3. Step 3: Cross multiply
    13,951.77x = 20,928.39 × 4,091.23
  4. Step 4: Simplify right side
    13,951.77x = 85,622,857.02
  5. Step 5: Solve for x
    x = 85,622,857.02/13,951.77
  6. Step 6: Final answer
    x = 6,137.06

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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.