Home / 12,190.92-18,283.80-5,168.52

Finding the Fourth Proportional to 12,190.92, 18,283.80 and 5,168.52

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Solution

The fourth proportional to 12,190.92, 18,283.80 and 5,168.52 is: 7,751.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,190.92 : 18,283.80 = 5,168.52 : x
  2. Step 2: Convert to fraction form
    12,190.92/18,283.80 = 5,168.52/x
  3. Step 3: Cross multiply
    12,190.92x = 18,283.80 × 5,168.52
  4. Step 4: Simplify right side
    12,190.92x = 94,500,185.98
  5. Step 5: Solve for x
    x = 94,500,185.98/12,190.92
  6. Step 6: Final answer
    x = 7,751.69

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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.