Home / 8,147.54-11,243.67-4,790.42

Finding the Fourth Proportional to 8,147.54, 11,243.67 and 4,790.42

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Solution

The fourth proportional to 8,147.54, 11,243.67 and 4,790.42 is: 6,610.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.54 : 11,243.67 = 4,790.42 : x
  2. Step 2: Convert to fraction form
    8,147.54/11,243.67 = 4,790.42/x
  3. Step 3: Cross multiply
    8,147.54x = 11,243.67 × 4,790.42
  4. Step 4: Simplify right side
    8,147.54x = 53,861,901.64
  5. Step 5: Solve for x
    x = 53,861,901.64/8,147.54
  6. Step 6: Final answer
    x = 6,610.82

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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.