Home / 12,081.38-16,668.66-7,609.56

Finding the Fourth Proportional to 12,081.38, 16,668.66 and 7,609.56

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Solution

The fourth proportional to 12,081.38, 16,668.66 and 7,609.56 is: 10,498.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,081.38 : 16,668.66 = 7,609.56 : x
  2. Step 2: Convert to fraction form
    12,081.38/16,668.66 = 7,609.56/x
  3. Step 3: Cross multiply
    12,081.38x = 16,668.66 × 7,609.56
  4. Step 4: Simplify right side
    12,081.38x = 126,841,168.39
  5. Step 5: Solve for x
    x = 126,841,168.39/12,081.38
  6. Step 6: Final answer
    x = 10,498.90

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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.