Home / 8,172.35-12,249.75-3,235.13

Finding the Fourth Proportional to 8,172.35, 12,249.75 and 3,235.13

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Solution

The fourth proportional to 8,172.35, 12,249.75 and 3,235.13 is: 4,849.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.35 : 12,249.75 = 3,235.13 : x
  2. Step 2: Convert to fraction form
    8,172.35/12,249.75 = 3,235.13/x
  3. Step 3: Cross multiply
    8,172.35x = 12,249.75 × 3,235.13
  4. Step 4: Simplify right side
    8,172.35x = 39,629,533.72
  5. Step 5: Solve for x
    x = 39,629,533.72/8,172.35
  6. Step 6: Final answer
    x = 4,849.22

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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.