Home / 8,108.72-11,190.05-4,571.92

Finding the Fourth Proportional to 8,108.72, 11,190.05 and 4,571.92

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Solution

The fourth proportional to 8,108.72, 11,190.05 and 4,571.92 is: 6,309.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.72 : 11,190.05 = 4,571.92 : x
  2. Step 2: Convert to fraction form
    8,108.72/11,190.05 = 4,571.92/x
  3. Step 3: Cross multiply
    8,108.72x = 11,190.05 × 4,571.92
  4. Step 4: Simplify right side
    8,108.72x = 51,160,013.40
  5. Step 5: Solve for x
    x = 51,160,013.40/8,108.72
  6. Step 6: Final answer
    x = 6,309.26

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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.