Home / 8,469.20-12,706.32-2,626.40

Finding the Fourth Proportional to 8,469.20, 12,706.32 and 2,626.40

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Solution

The fourth proportional to 8,469.20, 12,706.32 and 2,626.40 is: 3,940.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,469.20 : 12,706.32 = 2,626.40 : x
  2. Step 2: Convert to fraction form
    8,469.20/12,706.32 = 2,626.40/x
  3. Step 3: Cross multiply
    8,469.20x = 12,706.32 × 2,626.40
  4. Step 4: Simplify right side
    8,469.20x = 33,371,878.85
  5. Step 5: Solve for x
    x = 33,371,878.85/8,469.20
  6. Step 6: Final answer
    x = 3,940.38

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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.