Home / 8,128.33-11,226.35-5,471.12

Finding the Fourth Proportional to 8,128.33, 11,226.35 and 5,471.12

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Solution

The fourth proportional to 8,128.33, 11,226.35 and 5,471.12 is: 7,556.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.33 : 11,226.35 = 5,471.12 : x
  2. Step 2: Convert to fraction form
    8,128.33/11,226.35 = 5,471.12/x
  3. Step 3: Cross multiply
    8,128.33x = 11,226.35 × 5,471.12
  4. Step 4: Simplify right side
    8,128.33x = 61,420,718.98
  5. Step 5: Solve for x
    x = 61,420,718.98/8,128.33
  6. Step 6: Final answer
    x = 7,556.38

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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.