Home / 8,727.80-13,091.63-3,179.20

Finding the Fourth Proportional to 8,727.80, 13,091.63 and 3,179.20

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Solution

The fourth proportional to 8,727.80, 13,091.63 and 3,179.20 is: 4,768.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,727.80 : 13,091.63 = 3,179.20 : x
  2. Step 2: Convert to fraction form
    8,727.80/13,091.63 = 3,179.20/x
  3. Step 3: Cross multiply
    8,727.80x = 13,091.63 × 3,179.20
  4. Step 4: Simplify right side
    8,727.80x = 41,620,886.02
  5. Step 5: Solve for x
    x = 41,620,886.02/8,727.80
  6. Step 6: Final answer
    x = 4,768.77

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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.