Home / 12,132.46-18,192.84-4,234.78

Finding the Fourth Proportional to 12,132.46, 18,192.84 and 4,234.78

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Solution

The fourth proportional to 12,132.46, 18,192.84 and 4,234.78 is: 6,350.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.46 : 18,192.84 = 4,234.78 : x
  2. Step 2: Convert to fraction form
    12,132.46/18,192.84 = 4,234.78/x
  3. Step 3: Cross multiply
    12,132.46x = 18,192.84 × 4,234.78
  4. Step 4: Simplify right side
    12,132.46x = 77,042,674.98
  5. Step 5: Solve for x
    x = 77,042,674.98/12,132.46
  6. Step 6: Final answer
    x = 6,350.13

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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.