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Finding the Fourth Proportional to 8,354.81, 12,532.22 and 2,198.81

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Solution

The fourth proportional to 8,354.81, 12,532.22 and 2,198.81 is: 3,298.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,354.81 : 12,532.22 = 2,198.81 : x
  2. Step 2: Convert to fraction form
    8,354.81/12,532.22 = 2,198.81/x
  3. Step 3: Cross multiply
    8,354.81x = 12,532.22 × 2,198.81
  4. Step 4: Simplify right side
    8,354.81x = 27,555,999.24
  5. Step 5: Solve for x
    x = 27,555,999.24/8,354.81
  6. Step 6: Final answer
    x = 3,298.22

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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.