Home / 13,818.24-20,736.60-6,801.60

Finding the Fourth Proportional to 13,818.24, 20,736.60 and 6,801.60

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Solution

The fourth proportional to 13,818.24, 20,736.60 and 6,801.60 is: 10,206.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.24 : 20,736.60 = 6,801.60 : x
  2. Step 2: Convert to fraction form
    13,818.24/20,736.60 = 6,801.60/x
  3. Step 3: Cross multiply
    13,818.24x = 20,736.60 × 6,801.60
  4. Step 4: Simplify right side
    13,818.24x = 141,042,058.56
  5. Step 5: Solve for x
    x = 141,042,058.56/13,818.24
  6. Step 6: Final answer
    x = 10,206.95

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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.