Home / 8,271.26-12,406.89-3,205.34

Finding the Fourth Proportional to 8,271.26, 12,406.89 and 3,205.34

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Solution

The fourth proportional to 8,271.26, 12,406.89 and 3,205.34 is: 4,808.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,271.26 : 12,406.89 = 3,205.34 : x
  2. Step 2: Convert to fraction form
    8,271.26/12,406.89 = 3,205.34/x
  3. Step 3: Cross multiply
    8,271.26x = 12,406.89 × 3,205.34
  4. Step 4: Simplify right side
    8,271.26x = 39,768,300.79
  5. Step 5: Solve for x
    x = 39,768,300.79/8,271.26
  6. Step 6: Final answer
    x = 4,808.01

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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.