Home / 18,880.44-26,049.90-12,160.56

Finding the Fourth Proportional to 18,880.44, 26,049.90 and 12,160.56

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Solution

The fourth proportional to 18,880.44, 26,049.90 and 12,160.56 is: 16,778.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,880.44 : 26,049.90 = 12,160.56 : x
  2. Step 2: Convert to fraction form
    18,880.44/26,049.90 = 12,160.56/x
  3. Step 3: Cross multiply
    18,880.44x = 26,049.90 × 12,160.56
  4. Step 4: Simplify right side
    18,880.44x = 316,781,371.94
  5. Step 5: Solve for x
    x = 316,781,371.94/18,880.44
  6. Step 6: Final answer
    x = 16,778.28

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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.