Home / 9,993.40-13,791.34-5,745.84

Finding the Fourth Proportional to 9,993.40, 13,791.34 and 5,745.84

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Solution

The fourth proportional to 9,993.40, 13,791.34 and 5,745.84 is: 7,929.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993.40 : 13,791.34 = 5,745.84 : x
  2. Step 2: Convert to fraction form
    9,993.40/13,791.34 = 5,745.84/x
  3. Step 3: Cross multiply
    9,993.40x = 13,791.34 × 5,745.84
  4. Step 4: Simplify right side
    9,993.40x = 79,242,833.03
  5. Step 5: Solve for x
    x = 79,242,833.03/9,993.40
  6. Step 6: Final answer
    x = 7,929.52

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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.