Home / 13,965.32-20,948.25-5,198.46

Finding the Fourth Proportional to 13,965.32, 20,948.25 and 5,198.46

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Solution

The fourth proportional to 13,965.32, 20,948.25 and 5,198.46 is: 7,797.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.32 : 20,948.25 = 5,198.46 : x
  2. Step 2: Convert to fraction form
    13,965.32/20,948.25 = 5,198.46/x
  3. Step 3: Cross multiply
    13,965.32x = 20,948.25 × 5,198.46
  4. Step 4: Simplify right side
    13,965.32x = 108,898,639.70
  5. Step 5: Solve for x
    x = 108,898,639.70/13,965.32
  6. Step 6: Final answer
    x = 7,797.79

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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.