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Finding the Fourth Proportional to 8,486.02, 12,729.03 and 2,643.22

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Solution

The fourth proportional to 8,486.02, 12,729.03 and 2,643.22 is: 3,964.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,486.02 : 12,729.03 = 2,643.22 : x
  2. Step 2: Convert to fraction form
    8,486.02/12,729.03 = 2,643.22/x
  3. Step 3: Cross multiply
    8,486.02x = 12,729.03 × 2,643.22
  4. Step 4: Simplify right side
    8,486.02x = 33,645,626.68
  5. Step 5: Solve for x
    x = 33,645,626.68/8,486.02
  6. Step 6: Final answer
    x = 3,964.83

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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.