Home / 12,491.94-18,733.80-4,169.49

Finding the Fourth Proportional to 12,491.94, 18,733.80 and 4,169.49

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Solution

The fourth proportional to 12,491.94, 18,733.80 and 4,169.49 is: 6,252.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491.94 : 18,733.80 = 4,169.49 : x
  2. Step 2: Convert to fraction form
    12,491.94/18,733.80 = 4,169.49/x
  3. Step 3: Cross multiply
    12,491.94x = 18,733.80 × 4,169.49
  4. Step 4: Simplify right side
    12,491.94x = 78,110,391.76
  5. Step 5: Solve for x
    x = 78,110,391.76/12,491.94
  6. Step 6: Final answer
    x = 6,252.86

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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.