Home / 8,790.50-13,187.27-3,860.63

Finding the Fourth Proportional to 8,790.50, 13,187.27 and 3,860.63

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Solution

The fourth proportional to 8,790.50, 13,187.27 and 3,860.63 is: 5,791.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.50 : 13,187.27 = 3,860.63 : x
  2. Step 2: Convert to fraction form
    8,790.50/13,187.27 = 3,860.63/x
  3. Step 3: Cross multiply
    8,790.50x = 13,187.27 × 3,860.63
  4. Step 4: Simplify right side
    8,790.50x = 50,911,183.85
  5. Step 5: Solve for x
    x = 50,911,183.85/8,790.50
  6. Step 6: Final answer
    x = 5,791.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.