Home / 7,171.36-9,896.96-4,027.84

Finding the Fourth Proportional to 7,171.36, 9,896.96 and 4,027.84

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Solution

The fourth proportional to 7,171.36, 9,896.96 and 4,027.84 is: 5,558.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171.36 : 9,896.96 = 4,027.84 : x
  2. Step 2: Convert to fraction form
    7,171.36/9,896.96 = 4,027.84/x
  3. Step 3: Cross multiply
    7,171.36x = 9,896.96 × 4,027.84
  4. Step 4: Simplify right side
    7,171.36x = 39,863,371.37
  5. Step 5: Solve for x
    x = 39,863,371.37/7,171.36
  6. Step 6: Final answer
    x = 5,558.69

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1.5x scale

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.