Home / 8,108.70-11,187.43-4,571.22

Finding the Fourth Proportional to 8,108.70, 11,187.43 and 4,571.22

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Solution

The fourth proportional to 8,108.70, 11,187.43 and 4,571.22 is: 6,306.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.70 : 11,187.43 = 4,571.22 : x
  2. Step 2: Convert to fraction form
    8,108.70/11,187.43 = 4,571.22/x
  3. Step 3: Cross multiply
    8,108.70x = 11,187.43 × 4,571.22
  4. Step 4: Simplify right side
    8,108.70x = 51,140,203.76
  5. Step 5: Solve for x
    x = 51,140,203.76/8,108.70
  6. Step 6: Final answer
    x = 6,306.83

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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.