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Finding the Fourth Proportional to 8,529.76, 12,796.38 and 3,599.40

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Solution

The fourth proportional to 8,529.76, 12,796.38 and 3,599.40 is: 5,399.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,529.76 : 12,796.38 = 3,599.40 : x
  2. Step 2: Convert to fraction form
    8,529.76/12,796.38 = 3,599.40/x
  3. Step 3: Cross multiply
    8,529.76x = 12,796.38 × 3,599.40
  4. Step 4: Simplify right side
    8,529.76x = 46,059,290.17
  5. Step 5: Solve for x
    x = 46,059,290.17/8,529.76
  6. Step 6: Final answer
    x = 5,399.83

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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.