Home / 11,399.22-17,088.42-3,999.64

Finding the Fourth Proportional to 11,399.22, 17,088.42 and 3,999.64

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Solution

The fourth proportional to 11,399.22, 17,088.42 and 3,999.64 is: 5,995.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,399.22 : 17,088.42 = 3,999.64 : x
  2. Step 2: Convert to fraction form
    11,399.22/17,088.42 = 3,999.64/x
  3. Step 3: Cross multiply
    11,399.22x = 17,088.42 × 3,999.64
  4. Step 4: Simplify right side
    11,399.22x = 68,347,528.17
  5. Step 5: Solve for x
    x = 68,347,528.17/11,399.22
  6. Step 6: Final answer
    x = 5,995.81

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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.