Home / 7,171.20-9,896.16-4,027.32

Finding the Fourth Proportional to 7,171.20, 9,896.16 and 4,027.32

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Solution

The fourth proportional to 7,171.20, 9,896.16 and 4,027.32 is: 5,557.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171.20 : 9,896.16 = 4,027.32 : x
  2. Step 2: Convert to fraction form
    7,171.20/9,896.16 = 4,027.32/x
  3. Step 3: Cross multiply
    7,171.20x = 9,896.16 × 4,027.32
  4. Step 4: Simplify right side
    7,171.20x = 39,855,003.09
  5. Step 5: Solve for x
    x = 39,855,003.09/7,171.20
  6. Step 6: Final answer
    x = 5,557.65

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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.