Home / 8,129.42-12,198.16-3,749.96

Finding the Fourth Proportional to 8,129.42, 12,198.16 and 3,749.96

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Solution

The fourth proportional to 8,129.42, 12,198.16 and 3,749.96 is: 5,626.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.42 : 12,198.16 = 3,749.96 : x
  2. Step 2: Convert to fraction form
    8,129.42/12,198.16 = 3,749.96/x
  3. Step 3: Cross multiply
    8,129.42x = 12,198.16 × 3,749.96
  4. Step 4: Simplify right side
    8,129.42x = 45,742,612.07
  5. Step 5: Solve for x
    x = 45,742,612.07/8,129.42
  6. Step 6: Final answer
    x = 5,626.80

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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.