Home / 13,698.09-20,546.96-3,309.75

Finding the Fourth Proportional to 13,698.09, 20,546.96 and 3,309.75

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Solution

The fourth proportional to 13,698.09, 20,546.96 and 3,309.75 is: 4,964.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698.09 : 20,546.96 = 3,309.75 : x
  2. Step 2: Convert to fraction form
    13,698.09/20,546.96 = 3,309.75/x
  3. Step 3: Cross multiply
    13,698.09x = 20,546.96 × 3,309.75
  4. Step 4: Simplify right side
    13,698.09x = 68,005,284.31
  5. Step 5: Solve for x
    x = 68,005,284.31/13,698.09
  6. Step 6: Final answer
    x = 4,964.58

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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.