Home / 8,138.46-11,240.31-5,481.26

Finding the Fourth Proportional to 8,138.46, 11,240.31 and 5,481.26

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Solution

The fourth proportional to 8,138.46, 11,240.31 and 5,481.26 is: 7,570.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138.46 : 11,240.31 = 5,481.26 : x
  2. Step 2: Convert to fraction form
    8,138.46/11,240.31 = 5,481.26/x
  3. Step 3: Cross multiply
    8,138.46x = 11,240.31 × 5,481.26
  4. Step 4: Simplify right side
    8,138.46x = 61,611,005.39
  5. Step 5: Solve for x
    x = 61,611,005.39/8,138.46
  6. Step 6: Final answer
    x = 7,570.35

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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.