Home / 12,109.08-18,163.59-3,343.97

Finding the Fourth Proportional to 12,109.08, 18,163.59 and 3,343.97

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Solution

The fourth proportional to 12,109.08, 18,163.59 and 3,343.97 is: 5,015.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,109.08 : 18,163.59 = 3,343.97 : x
  2. Step 2: Convert to fraction form
    12,109.08/18,163.59 = 3,343.97/x
  3. Step 3: Cross multiply
    12,109.08x = 18,163.59 × 3,343.97
  4. Step 4: Simplify right side
    12,109.08x = 60,738,409.23
  5. Step 5: Solve for x
    x = 60,738,409.23/12,109.08
  6. Step 6: Final answer
    x = 5,015.94

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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.