Home / 13,890.33-19,163.88-7,917.69

Finding the Fourth Proportional to 13,890.33, 19,163.88 and 7,917.69

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Solution

The fourth proportional to 13,890.33, 19,163.88 and 7,917.69 is: 10,923.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.33 : 19,163.88 = 7,917.69 : x
  2. Step 2: Convert to fraction form
    13,890.33/19,163.88 = 7,917.69/x
  3. Step 3: Cross multiply
    13,890.33x = 19,163.88 × 7,917.69
  4. Step 4: Simplify right side
    13,890.33x = 151,733,585.01
  5. Step 5: Solve for x
    x = 151,733,585.01/13,890.33
  6. Step 6: Final answer
    x = 10,923.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.