Home / 19,198.11-28,791.53-6,715.81

Finding the Fourth Proportional to 19,198.11, 28,791.53 and 6,715.81

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Solution

The fourth proportional to 19,198.11, 28,791.53 and 6,715.81 is: 10,071.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,198.11 : 28,791.53 = 6,715.81 : x
  2. Step 2: Convert to fraction form
    19,198.11/28,791.53 = 6,715.81/x
  3. Step 3: Cross multiply
    19,198.11x = 28,791.53 × 6,715.81
  4. Step 4: Simplify right side
    19,198.11x = 193,358,445.09
  5. Step 5: Solve for x
    x = 193,358,445.09/19,198.11
  6. Step 6: Final answer
    x = 10,071.74

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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.