Home / 13,958.36-20,935.98-4,097.72

Finding the Fourth Proportional to 13,958.36, 20,935.98 and 4,097.72

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Solution

The fourth proportional to 13,958.36, 20,935.98 and 4,097.72 is: 6,146.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,958.36 : 20,935.98 = 4,097.72 : x
  2. Step 2: Convert to fraction form
    13,958.36/20,935.98 = 4,097.72/x
  3. Step 3: Cross multiply
    13,958.36x = 20,935.98 × 4,097.72
  4. Step 4: Simplify right side
    13,958.36x = 85,789,783.97
  5. Step 5: Solve for x
    x = 85,789,783.97/13,958.36
  6. Step 6: Final answer
    x = 6,146.12

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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.