Home / 19,197.86-28,791.16-6,715.56

Finding the Fourth Proportional to 19,197.86, 28,791.16 and 6,715.56

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Solution

The fourth proportional to 19,197.86, 28,791.16 and 6,715.56 is: 10,071.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,197.86 : 28,791.16 = 6,715.56 : x
  2. Step 2: Convert to fraction form
    19,197.86/28,791.16 = 6,715.56/x
  3. Step 3: Cross multiply
    19,197.86x = 28,791.16 × 6,715.56
  4. Step 4: Simplify right side
    19,197.86x = 193,348,745.66
  5. Step 5: Solve for x
    x = 193,348,745.66/19,197.86
  6. Step 6: Final answer
    x = 10,071.37

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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.