Home / 12,198.81-16,834.37-6,609.81

Finding the Fourth Proportional to 12,198.81, 16,834.37 and 6,609.81

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Solution

The fourth proportional to 12,198.81, 16,834.37 and 6,609.81 is: 9,121.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,198.81 : 16,834.37 = 6,609.81 : x
  2. Step 2: Convert to fraction form
    12,198.81/16,834.37 = 6,609.81/x
  3. Step 3: Cross multiply
    12,198.81x = 16,834.37 × 6,609.81
  4. Step 4: Simplify right side
    12,198.81x = 111,271,987.17
  5. Step 5: Solve for x
    x = 111,271,987.17/12,198.81
  6. Step 6: Final answer
    x = 9,121.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.