Home / 10,745.80-16,121.42-5,201.80

Finding the Fourth Proportional to 10,745.80, 16,121.42 and 5,201.80

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Solution

The fourth proportional to 10,745.80, 16,121.42 and 5,201.80 is: 7,804.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,745.80 : 16,121.42 = 5,201.80 : x
  2. Step 2: Convert to fraction form
    10,745.80/16,121.42 = 5,201.80/x
  3. Step 3: Cross multiply
    10,745.80x = 16,121.42 × 5,201.80
  4. Step 4: Simplify right side
    10,745.80x = 83,860,402.56
  5. Step 5: Solve for x
    x = 83,860,402.56/10,745.80
  6. Step 6: Final answer
    x = 7,804.02

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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.