Home / 13,163.12-19,727.36-6,239.60

Finding the Fourth Proportional to 13,163.12, 19,727.36 and 6,239.60

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Solution

The fourth proportional to 13,163.12, 19,727.36 and 6,239.60 is: 9,351.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163.12 : 19,727.36 = 6,239.60 : x
  2. Step 2: Convert to fraction form
    13,163.12/19,727.36 = 6,239.60/x
  3. Step 3: Cross multiply
    13,163.12x = 19,727.36 × 6,239.60
  4. Step 4: Simplify right side
    13,163.12x = 123,090,835.46
  5. Step 5: Solve for x
    x = 123,090,835.46/13,163.12
  6. Step 6: Final answer
    x = 9,351.19

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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.