Home / 9,286.80-13,921.60-3,126.48

Finding the Fourth Proportional to 9,286.80, 13,921.60 and 3,126.48

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Solution

The fourth proportional to 9,286.80, 13,921.60 and 3,126.48 is: 4,686.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,286.80 : 13,921.60 = 3,126.48 : x
  2. Step 2: Convert to fraction form
    9,286.80/13,921.60 = 3,126.48/x
  3. Step 3: Cross multiply
    9,286.80x = 13,921.60 × 3,126.48
  4. Step 4: Simplify right side
    9,286.80x = 43,525,603.97
  5. Step 5: Solve for x
    x = 43,525,603.97/9,286.80
  6. Step 6: Final answer
    x = 4,686.82

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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.