Home / 8,574.06-12,861.12-2,731.20

Finding the Fourth Proportional to 8,574.06, 12,861.12 and 2,731.20

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Solution

The fourth proportional to 8,574.06, 12,861.12 and 2,731.20 is: 4,096.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,574.06 : 12,861.12 = 2,731.20 : x
  2. Step 2: Convert to fraction form
    8,574.06/12,861.12 = 2,731.20/x
  3. Step 3: Cross multiply
    8,574.06x = 12,861.12 × 2,731.20
  4. Step 4: Simplify right side
    8,574.06x = 35,126,290.94
  5. Step 5: Solve for x
    x = 35,126,290.94/8,574.06
  6. Step 6: Final answer
    x = 4,096.81

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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.