Home / 12,163.90-18,239.77-5,584.47

Finding the Fourth Proportional to 12,163.90, 18,239.77 and 5,584.47

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Solution

The fourth proportional to 12,163.90, 18,239.77 and 5,584.47 is: 8,373.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,163.90 : 18,239.77 = 5,584.47 : x
  2. Step 2: Convert to fraction form
    12,163.90/18,239.77 = 5,584.47/x
  3. Step 3: Cross multiply
    12,163.90x = 18,239.77 × 5,584.47
  4. Step 4: Simplify right side
    12,163.90x = 101,859,448.37
  5. Step 5: Solve for x
    x = 101,859,448.37/12,163.90
  6. Step 6: Final answer
    x = 8,373.91

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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.