Home / 8,147.86-11,240.23-4,790.62

Finding the Fourth Proportional to 8,147.86, 11,240.23 and 4,790.62

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Solution

The fourth proportional to 8,147.86, 11,240.23 and 4,790.62 is: 6,608.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.86 : 11,240.23 = 4,790.62 : x
  2. Step 2: Convert to fraction form
    8,147.86/11,240.23 = 4,790.62/x
  3. Step 3: Cross multiply
    8,147.86x = 11,240.23 × 4,790.62
  4. Step 4: Simplify right side
    8,147.86x = 53,847,670.64
  5. Step 5: Solve for x
    x = 53,847,670.64/8,147.86
  6. Step 6: Final answer
    x = 6,608.81

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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.