Home / 8,409.36-12,613.15-3,729.45

Finding the Fourth Proportional to 8,409.36, 12,613.15 and 3,729.45

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Solution

The fourth proportional to 8,409.36, 12,613.15 and 3,729.45 is: 5,593.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,409.36 : 12,613.15 = 3,729.45 : x
  2. Step 2: Convert to fraction form
    8,409.36/12,613.15 = 3,729.45/x
  3. Step 3: Cross multiply
    8,409.36x = 12,613.15 × 3,729.45
  4. Step 4: Simplify right side
    8,409.36x = 47,040,112.27
  5. Step 5: Solve for x
    x = 47,040,112.27/8,409.36
  6. Step 6: Final answer
    x = 5,593.78

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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.