Home / 8,729.24-12,048.21-5,745.33

Finding the Fourth Proportional to 8,729.24, 12,048.21 and 5,745.33

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Solution

The fourth proportional to 8,729.24, 12,048.21 and 5,745.33 is: 7,929.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.24 : 12,048.21 = 5,745.33 : x
  2. Step 2: Convert to fraction form
    8,729.24/12,048.21 = 5,745.33/x
  3. Step 3: Cross multiply
    8,729.24x = 12,048.21 × 5,745.33
  4. Step 4: Simplify right side
    8,729.24x = 69,220,942.36
  5. Step 5: Solve for x
    x = 69,220,942.36/8,729.24
  6. Step 6: Final answer
    x = 7,929.78

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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.