Home / 8,186.20-11,223.41-8,038.60

Finding the Fourth Proportional to 8,186.20, 11,223.41 and 8,038.60

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Solution

The fourth proportional to 8,186.20, 11,223.41 and 8,038.60 is: 11,021.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,186.20 : 11,223.41 = 8,038.60 : x
  2. Step 2: Convert to fraction form
    8,186.20/11,223.41 = 8,038.60/x
  3. Step 3: Cross multiply
    8,186.20x = 11,223.41 × 8,038.60
  4. Step 4: Simplify right side
    8,186.20x = 90,220,503.63
  5. Step 5: Solve for x
    x = 90,220,503.63/8,186.20
  6. Step 6: Final answer
    x = 11,021.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.