Home / 8,108.18-11,189.40-4,571.38

Finding the Fourth Proportional to 8,108.18, 11,189.40 and 4,571.38

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Solution

The fourth proportional to 8,108.18, 11,189.40 and 4,571.38 is: 6,308.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.18 : 11,189.40 = 4,571.38 : x
  2. Step 2: Convert to fraction form
    8,108.18/11,189.40 = 4,571.38/x
  3. Step 3: Cross multiply
    8,108.18x = 11,189.40 × 4,571.38
  4. Step 4: Simplify right side
    8,108.18x = 51,150,999.37
  5. Step 5: Solve for x
    x = 51,150,999.37/8,108.18
  6. Step 6: Final answer
    x = 6,308.57

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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.