Home / 12,231.14-18,342.10-3,908.92

Finding the Fourth Proportional to 12,231.14, 18,342.10 and 3,908.92

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Solution

The fourth proportional to 12,231.14, 18,342.10 and 3,908.92 is: 5,861.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.14 : 18,342.10 = 3,908.92 : x
  2. Step 2: Convert to fraction form
    12,231.14/18,342.10 = 3,908.92/x
  3. Step 3: Cross multiply
    12,231.14x = 18,342.10 × 3,908.92
  4. Step 4: Simplify right side
    12,231.14x = 71,697,798.76
  5. Step 5: Solve for x
    x = 71,697,798.76/12,231.14
  6. Step 6: Final answer
    x = 5,861.91

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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.