Home / 8,112.78-11,195.42-4,576.32

Finding the Fourth Proportional to 8,112.78, 11,195.42 and 4,576.32

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Solution

The fourth proportional to 8,112.78, 11,195.42 and 4,576.32 is: 6,315.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.78 : 11,195.42 = 4,576.32 : x
  2. Step 2: Convert to fraction form
    8,112.78/11,195.42 = 4,576.32/x
  3. Step 3: Cross multiply
    8,112.78x = 11,195.42 × 4,576.32
  4. Step 4: Simplify right side
    8,112.78x = 51,233,801.57
  5. Step 5: Solve for x
    x = 51,233,801.57/8,112.78
  6. Step 6: Final answer
    x = 6,315.20

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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.