Home / 12,025.42-18,038.25-4,234.30

Finding the Fourth Proportional to 12,025.42, 18,038.25 and 4,234.30

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Solution

The fourth proportional to 12,025.42, 18,038.25 and 4,234.30 is: 6,351.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,025.42 : 18,038.25 = 4,234.30 : x
  2. Step 2: Convert to fraction form
    12,025.42/18,038.25 = 4,234.30/x
  3. Step 3: Cross multiply
    12,025.42x = 18,038.25 × 4,234.30
  4. Step 4: Simplify right side
    12,025.42x = 76,379,361.98
  5. Step 5: Solve for x
    x = 76,379,361.98/12,025.42
  6. Step 6: Final answer
    x = 6,351.49

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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.