Home / 8,144.26-12,212.70-3,210.10

Finding the Fourth Proportional to 8,144.26, 12,212.70 and 3,210.10

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Solution

The fourth proportional to 8,144.26, 12,212.70 and 3,210.10 is: 4,813.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,144.26 : 12,212.70 = 3,210.10 : x
  2. Step 2: Convert to fraction form
    8,144.26/12,212.70 = 3,210.10/x
  3. Step 3: Cross multiply
    8,144.26x = 12,212.70 × 3,210.10
  4. Step 4: Simplify right side
    8,144.26x = 39,203,988.27
  5. Step 5: Solve for x
    x = 39,203,988.27/8,144.26
  6. Step 6: Final answer
    x = 4,813.70

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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.