Home / 12,646.94-18,974.66-5,631.73

Finding the Fourth Proportional to 12,646.94, 18,974.66 and 5,631.73

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Solution

The fourth proportional to 12,646.94, 18,974.66 and 5,631.73 is: 8,449.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646.94 : 18,974.66 = 5,631.73 : x
  2. Step 2: Convert to fraction form
    12,646.94/18,974.66 = 5,631.73/x
  3. Step 3: Cross multiply
    12,646.94x = 18,974.66 × 5,631.73
  4. Step 4: Simplify right side
    12,646.94x = 106,860,086.37
  5. Step 5: Solve for x
    x = 106,860,086.37/12,646.94
  6. Step 6: Final answer
    x = 8,449.48

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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.