Home / 15,163.25-20,925.33-8,791.09

Finding the Fourth Proportional to 15,163.25, 20,925.33 and 8,791.09

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Solution

The fourth proportional to 15,163.25, 20,925.33 and 8,791.09 is: 12,131.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,163.25 : 20,925.33 = 8,791.09 : x
  2. Step 2: Convert to fraction form
    15,163.25/20,925.33 = 8,791.09/x
  3. Step 3: Cross multiply
    15,163.25x = 20,925.33 × 8,791.09
  4. Step 4: Simplify right side
    15,163.25x = 183,956,374.03
  5. Step 5: Solve for x
    x = 183,956,374.03/15,163.25
  6. Step 6: Final answer
    x = 12,131.73

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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.