Home / 8,399.11-12,603.53-4,239.44

Finding the Fourth Proportional to 8,399.11, 12,603.53 and 4,239.44

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Solution

The fourth proportional to 8,399.11, 12,603.53 and 4,239.44 is: 6,361.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,399.11 : 12,603.53 = 4,239.44 : x
  2. Step 2: Convert to fraction form
    8,399.11/12,603.53 = 4,239.44/x
  3. Step 3: Cross multiply
    8,399.11x = 12,603.53 × 4,239.44
  4. Step 4: Simplify right side
    8,399.11x = 53,431,951.33
  5. Step 5: Solve for x
    x = 53,431,951.33/8,399.11
  6. Step 6: Final answer
    x = 6,361.62

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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.