Home / 18,668.07-27,997.68-5,340.66

Finding the Fourth Proportional to 18,668.07, 27,997.68 and 5,340.66

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Solution

The fourth proportional to 18,668.07, 27,997.68 and 5,340.66 is: 8,009.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668.07 : 27,997.68 = 5,340.66 : x
  2. Step 2: Convert to fraction form
    18,668.07/27,997.68 = 5,340.66/x
  3. Step 3: Cross multiply
    18,668.07x = 27,997.68 × 5,340.66
  4. Step 4: Simplify right side
    18,668.07x = 149,526,004.70
  5. Step 5: Solve for x
    x = 149,526,004.70/18,668.07
  6. Step 6: Final answer
    x = 8,009.72

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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.