Home / 8,626.86-12,940.83-3,079.62

Finding the Fourth Proportional to 8,626.86, 12,940.83 and 3,079.62

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Solution

The fourth proportional to 8,626.86, 12,940.83 and 3,079.62 is: 4,619.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,626.86 : 12,940.83 = 3,079.62 : x
  2. Step 2: Convert to fraction form
    8,626.86/12,940.83 = 3,079.62/x
  3. Step 3: Cross multiply
    8,626.86x = 12,940.83 × 3,079.62
  4. Step 4: Simplify right side
    8,626.86x = 39,852,838.88
  5. Step 5: Solve for x
    x = 39,852,838.88/8,626.86
  6. Step 6: Final answer
    x = 4,619.62

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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.