Home / 8,021.85-11,070.09-4,485.03

Finding the Fourth Proportional to 8,021.85, 11,070.09 and 4,485.03

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Solution

The fourth proportional to 8,021.85, 11,070.09 and 4,485.03 is: 6,189.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,021.85 : 11,070.09 = 4,485.03 : x
  2. Step 2: Convert to fraction form
    8,021.85/11,070.09 = 4,485.03/x
  3. Step 3: Cross multiply
    8,021.85x = 11,070.09 × 4,485.03
  4. Step 4: Simplify right side
    8,021.85x = 49,649,685.75
  5. Step 5: Solve for x
    x = 49,649,685.75/8,021.85
  6. Step 6: Final answer
    x = 6,189.31

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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.