Home / 12,791.07-17,651.61-7,125.54

Finding the Fourth Proportional to 12,791.07, 17,651.61 and 7,125.54

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Solution

The fourth proportional to 12,791.07, 17,651.61 and 7,125.54 is: 9,833.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791.07 : 17,651.61 = 7,125.54 : x
  2. Step 2: Convert to fraction form
    12,791.07/17,651.61 = 7,125.54/x
  3. Step 3: Cross multiply
    12,791.07x = 17,651.61 × 7,125.54
  4. Step 4: Simplify right side
    12,791.07x = 125,777,253.12
  5. Step 5: Solve for x
    x = 125,777,253.12/12,791.07
  6. Step 6: Final answer
    x = 9,833.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.