Home / 8,170.35-12,256.67-3,240.48

Finding the Fourth Proportional to 8,170.35, 12,256.67 and 3,240.48

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Solution

The fourth proportional to 8,170.35, 12,256.67 and 3,240.48 is: 4,861.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.35 : 12,256.67 = 3,240.48 : x
  2. Step 2: Convert to fraction form
    8,170.35/12,256.67 = 3,240.48/x
  3. Step 3: Cross multiply
    8,170.35x = 12,256.67 × 3,240.48
  4. Step 4: Simplify right side
    8,170.35x = 39,717,494.00
  5. Step 5: Solve for x
    x = 39,717,494.00/8,170.35
  6. Step 6: Final answer
    x = 4,861.17

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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.