Home / 8,147.37-12,212.73-3,210.21

Finding the Fourth Proportional to 8,147.37, 12,212.73 and 3,210.21

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Solution

The fourth proportional to 8,147.37, 12,212.73 and 3,210.21 is: 4,812.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.37 : 12,212.73 = 3,210.21 : x
  2. Step 2: Convert to fraction form
    8,147.37/12,212.73 = 3,210.21/x
  3. Step 3: Cross multiply
    8,147.37x = 12,212.73 × 3,210.21
  4. Step 4: Simplify right side
    8,147.37x = 39,205,427.97
  5. Step 5: Solve for x
    x = 39,205,427.97/8,147.37
  6. Step 6: Final answer
    x = 4,812.03

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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.