Home / 18,767.41-28,143.97-7,668.13

Finding the Fourth Proportional to 18,767.41, 28,143.97 and 7,668.13

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Solution

The fourth proportional to 18,767.41, 28,143.97 and 7,668.13 is: 11,499.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,767.41 : 28,143.97 = 7,668.13 : x
  2. Step 2: Convert to fraction form
    18,767.41/28,143.97 = 7,668.13/x
  3. Step 3: Cross multiply
    18,767.41x = 28,143.97 × 7,668.13
  4. Step 4: Simplify right side
    18,767.41x = 215,811,620.68
  5. Step 5: Solve for x
    x = 215,811,620.68/18,767.41
  6. Step 6: Final answer
    x = 11,499.28

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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.