Home / 8,573.45-12,858.23-4,128.85

Finding the Fourth Proportional to 8,573.45, 12,858.23 and 4,128.85

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Solution

The fourth proportional to 8,573.45, 12,858.23 and 4,128.85 is: 6,192.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,573.45 : 12,858.23 = 4,128.85 : x
  2. Step 2: Convert to fraction form
    8,573.45/12,858.23 = 4,128.85/x
  3. Step 3: Cross multiply
    8,573.45x = 12,858.23 × 4,128.85
  4. Step 4: Simplify right side
    8,573.45x = 53,089,657.89
  5. Step 5: Solve for x
    x = 53,089,657.89/8,573.45
  6. Step 6: Final answer
    x = 6,192.33

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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.