Home / 8,126.22-12,189.16-3,743.68

Finding the Fourth Proportional to 8,126.22, 12,189.16 and 3,743.68

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Solution

The fourth proportional to 8,126.22, 12,189.16 and 3,743.68 is: 5,615.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.22 : 12,189.16 = 3,743.68 : x
  2. Step 2: Convert to fraction form
    8,126.22/12,189.16 = 3,743.68/x
  3. Step 3: Cross multiply
    8,126.22x = 12,189.16 × 3,743.68
  4. Step 4: Simplify right side
    8,126.22x = 45,632,306.34
  5. Step 5: Solve for x
    x = 45,632,306.34/8,126.22
  6. Step 6: Final answer
    x = 5,615.44

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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.