Home / 12,230.74-18,342.13-3,908.80

Finding the Fourth Proportional to 12,230.74, 18,342.13 and 3,908.80

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Solution

The fourth proportional to 12,230.74, 18,342.13 and 3,908.80 is: 5,861.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,230.74 : 18,342.13 = 3,908.80 : x
  2. Step 2: Convert to fraction form
    12,230.74/18,342.13 = 3,908.80/x
  3. Step 3: Cross multiply
    12,230.74x = 18,342.13 × 3,908.80
  4. Step 4: Simplify right side
    12,230.74x = 71,695,717.74
  5. Step 5: Solve for x
    x = 71,695,717.74/12,230.74
  6. Step 6: Final answer
    x = 5,861.93

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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.