Home / 12,624.72-18,935.40-3,391.44

Finding the Fourth Proportional to 12,624.72, 18,935.40 and 3,391.44

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Solution

The fourth proportional to 12,624.72, 18,935.40 and 3,391.44 is: 5,086.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,624.72 : 18,935.40 = 3,391.44 : x
  2. Step 2: Convert to fraction form
    12,624.72/18,935.40 = 3,391.44/x
  3. Step 3: Cross multiply
    12,624.72x = 18,935.40 × 3,391.44
  4. Step 4: Simplify right side
    12,624.72x = 64,218,272.98
  5. Step 5: Solve for x
    x = 64,218,272.98/12,624.72
  6. Step 6: Final answer
    x = 5,086.71

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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.