Home / 8,414.21-11,611.61-4,879.47

Finding the Fourth Proportional to 8,414.21, 11,611.61 and 4,879.47

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Solution

The fourth proportional to 8,414.21, 11,611.61 and 4,879.47 is: 6,733.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,414.21 : 11,611.61 = 4,879.47 : x
  2. Step 2: Convert to fraction form
    8,414.21/11,611.61 = 4,879.47/x
  3. Step 3: Cross multiply
    8,414.21x = 11,611.61 × 4,879.47
  4. Step 4: Simplify right side
    8,414.21x = 56,658,502.65
  5. Step 5: Solve for x
    x = 56,658,502.65/8,414.21
  6. Step 6: Final answer
    x = 6,733.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.