Home / 8,142.42-11,236.01-4,556.78

Finding the Fourth Proportional to 8,142.42, 11,236.01 and 4,556.78

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Solution

The fourth proportional to 8,142.42, 11,236.01 and 4,556.78 is: 6,288.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.42 : 11,236.01 = 4,556.78 : x
  2. Step 2: Convert to fraction form
    8,142.42/11,236.01 = 4,556.78/x
  3. Step 3: Cross multiply
    8,142.42x = 11,236.01 × 4,556.78
  4. Step 4: Simplify right side
    8,142.42x = 51,200,025.65
  5. Step 5: Solve for x
    x = 51,200,025.65/8,142.42
  6. Step 6: Final answer
    x = 6,288.06

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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.