Home / 13,583.16-18,716.67-10,919.88

Finding the Fourth Proportional to 13,583.16, 18,716.67 and 10,919.88

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Solution

The fourth proportional to 13,583.16, 18,716.67 and 10,919.88 is: 15,046.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.16 : 18,716.67 = 10,919.88 : x
  2. Step 2: Convert to fraction form
    13,583.16/18,716.67 = 10,919.88/x
  3. Step 3: Cross multiply
    13,583.16x = 18,716.67 × 10,919.88
  4. Step 4: Simplify right side
    13,583.16x = 204,383,790.40
  5. Step 5: Solve for x
    x = 204,383,790.40/13,583.16
  6. Step 6: Final answer
    x = 15,046.85

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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.