Home / 8,108.75-11,199.29-5,451.54

Finding the Fourth Proportional to 8,108.75, 11,199.29 and 5,451.54

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Solution

The fourth proportional to 8,108.75, 11,199.29 and 5,451.54 is: 7,529.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.75 : 11,199.29 = 5,451.54 : x
  2. Step 2: Convert to fraction form
    8,108.75/11,199.29 = 5,451.54/x
  3. Step 3: Cross multiply
    8,108.75x = 11,199.29 × 5,451.54
  4. Step 4: Simplify right side
    8,108.75x = 61,053,350.15
  5. Step 5: Solve for x
    x = 61,053,350.15/8,108.75
  6. Step 6: Final answer
    x = 7,529.32

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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.