Home / 9,021.15-13,531.79-3,177.87

Finding the Fourth Proportional to 9,021.15, 13,531.79 and 3,177.87

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Solution

The fourth proportional to 9,021.15, 13,531.79 and 3,177.87 is: 4,766.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,021.15 : 13,531.79 = 3,177.87 : x
  2. Step 2: Convert to fraction form
    9,021.15/13,531.79 = 3,177.87/x
  3. Step 3: Cross multiply
    9,021.15x = 13,531.79 × 3,177.87
  4. Step 4: Simplify right side
    9,021.15x = 43,002,253.60
  5. Step 5: Solve for x
    x = 43,002,253.60/9,021.15
  6. Step 6: Final answer
    x = 4,766.83

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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.