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Finding the Fourth Proportional to 8,519.28, 12,772.53 and 5,738.15

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Solution

The fourth proportional to 8,519.28, 12,772.53 and 5,738.15 is: 8,602.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.28 : 12,772.53 = 5,738.15 : x
  2. Step 2: Convert to fraction form
    8,519.28/12,772.53 = 5,738.15/x
  3. Step 3: Cross multiply
    8,519.28x = 12,772.53 × 5,738.15
  4. Step 4: Simplify right side
    8,519.28x = 73,290,629.16
  5. Step 5: Solve for x
    x = 73,290,629.16/8,519.28
  6. Step 6: Final answer
    x = 8,602.91

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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.