Home / 11,479.33-17,216.73-3,157.21

Finding the Fourth Proportional to 11,479.33, 17,216.73 and 3,157.21

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Solution

The fourth proportional to 11,479.33, 17,216.73 and 3,157.21 is: 4,735.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,479.33 : 17,216.73 = 3,157.21 : x
  2. Step 2: Convert to fraction form
    11,479.33/17,216.73 = 3,157.21/x
  3. Step 3: Cross multiply
    11,479.33x = 17,216.73 × 3,157.21
  4. Step 4: Simplify right side
    11,479.33x = 54,356,832.12
  5. Step 5: Solve for x
    x = 54,356,832.12/11,479.33
  6. Step 6: Final answer
    x = 4,735.19

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1.5x scale

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.