Home / 18,708.69-28,067.66-5,561.01

Finding the Fourth Proportional to 18,708.69, 28,067.66 and 5,561.01

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Solution

The fourth proportional to 18,708.69, 28,067.66 and 5,561.01 is: 8,342.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,708.69 : 28,067.66 = 5,561.01 : x
  2. Step 2: Convert to fraction form
    18,708.69/28,067.66 = 5,561.01/x
  3. Step 3: Cross multiply
    18,708.69x = 28,067.66 × 5,561.01
  4. Step 4: Simplify right side
    18,708.69x = 156,084,369.79
  5. Step 5: Solve for x
    x = 156,084,369.79/18,708.69
  6. Step 6: Final answer
    x = 8,342.88

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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.