Home / 8,572.20-12,859.25-2,727.45

Finding the Fourth Proportional to 8,572.20, 12,859.25 and 2,727.45

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Solution

The fourth proportional to 8,572.20, 12,859.25 and 2,727.45 is: 4,091.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,572.20 : 12,859.25 = 2,727.45 : x
  2. Step 2: Convert to fraction form
    8,572.20/12,859.25 = 2,727.45/x
  3. Step 3: Cross multiply
    8,572.20x = 12,859.25 × 2,727.45
  4. Step 4: Simplify right side
    8,572.20x = 35,072,961.41
  5. Step 5: Solve for x
    x = 35,072,961.41/8,572.20
  6. Step 6: Final answer
    x = 4,091.48

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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.