Home / 8,790.66-13,170.50-4,620.78

Finding the Fourth Proportional to 8,790.66, 13,170.50 and 4,620.78

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Solution

The fourth proportional to 8,790.66, 13,170.50 and 4,620.78 is: 6,923.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.66 : 13,170.50 = 4,620.78 : x
  2. Step 2: Convert to fraction form
    8,790.66/13,170.50 = 4,620.78/x
  3. Step 3: Cross multiply
    8,790.66x = 13,170.50 × 4,620.78
  4. Step 4: Simplify right side
    8,790.66x = 60,857,977.21
  5. Step 5: Solve for x
    x = 60,857,977.21/8,790.66
  6. Step 6: Final answer
    x = 6,923.03

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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.