Home / 13,826.96-20,736.80-5,506.64

Finding the Fourth Proportional to 13,826.96, 20,736.80 and 5,506.64

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Solution

The fourth proportional to 13,826.96, 20,736.80 and 5,506.64 is: 8,258.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826.96 : 20,736.80 = 5,506.64 : x
  2. Step 2: Convert to fraction form
    13,826.96/20,736.80 = 5,506.64/x
  3. Step 3: Cross multiply
    13,826.96x = 20,736.80 × 5,506.64
  4. Step 4: Simplify right side
    13,826.96x = 114,190,092.35
  5. Step 5: Solve for x
    x = 114,190,092.35/13,826.96
  6. Step 6: Final answer
    x = 8,258.51

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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.