Home / 12,257.79-18,382.66-3,935.83

Finding the Fourth Proportional to 12,257.79, 18,382.66 and 3,935.83

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Solution

The fourth proportional to 12,257.79, 18,382.66 and 3,935.83 is: 5,902.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257.79 : 18,382.66 = 3,935.83 : x
  2. Step 2: Convert to fraction form
    12,257.79/18,382.66 = 3,935.83/x
  3. Step 3: Cross multiply
    12,257.79x = 18,382.66 × 3,935.83
  4. Step 4: Simplify right side
    12,257.79x = 72,351,005.03
  5. Step 5: Solve for x
    x = 72,351,005.03/12,257.79
  6. Step 6: Final answer
    x = 5,902.45

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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.