Home / 18,896.55-28,339.74-5,745.39

Finding the Fourth Proportional to 18,896.55, 28,339.74 and 5,745.39

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Solution

The fourth proportional to 18,896.55, 28,339.74 and 5,745.39 is: 8,616.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,896.55 : 28,339.74 = 5,745.39 : x
  2. Step 2: Convert to fraction form
    18,896.55/28,339.74 = 5,745.39/x
  3. Step 3: Cross multiply
    18,896.55x = 28,339.74 × 5,745.39
  4. Step 4: Simplify right side
    18,896.55x = 162,822,858.80
  5. Step 5: Solve for x
    x = 162,822,858.80/18,896.55
  6. Step 6: Final answer
    x = 8,616.54

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1.5x scale

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.