Home / 9,993.09-13,790.91-5,745.53

Finding the Fourth Proportional to 9,993.09, 13,790.91 and 5,745.53

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Solution

The fourth proportional to 9,993.09, 13,790.91 and 5,745.53 is: 7,929.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993.09 : 13,790.91 = 5,745.53 : x
  2. Step 2: Convert to fraction form
    9,993.09/13,790.91 = 5,745.53/x
  3. Step 3: Cross multiply
    9,993.09x = 13,790.91 × 5,745.53
  4. Step 4: Simplify right side
    9,993.09x = 79,236,143.16
  5. Step 5: Solve for x
    x = 79,236,143.16/9,993.09
  6. Step 6: Final answer
    x = 7,929.09

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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.