Home / 13,676.43-18,905.36-12,198.99

Finding the Fourth Proportional to 13,676.43, 18,905.36 and 12,198.99

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Solution

The fourth proportional to 13,676.43, 18,905.36 and 12,198.99 is: 16,863.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,676.43 : 18,905.36 = 12,198.99 : x
  2. Step 2: Convert to fraction form
    13,676.43/18,905.36 = 12,198.99/x
  3. Step 3: Cross multiply
    13,676.43x = 18,905.36 × 12,198.99
  4. Step 4: Simplify right side
    13,676.43x = 230,626,236.59
  5. Step 5: Solve for x
    x = 230,626,236.59/13,676.43
  6. Step 6: Final answer
    x = 16,863.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.