Home / 8,790.20-13,179.35-4,625.78

Finding the Fourth Proportional to 8,790.20, 13,179.35 and 4,625.78

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Solution

The fourth proportional to 8,790.20, 13,179.35 and 4,625.78 is: 6,935.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.20 : 13,179.35 = 4,625.78 : x
  2. Step 2: Convert to fraction form
    8,790.20/13,179.35 = 4,625.78/x
  3. Step 3: Cross multiply
    8,790.20x = 13,179.35 × 4,625.78
  4. Step 4: Simplify right side
    8,790.20x = 60,964,818.16
  5. Step 5: Solve for x
    x = 60,964,818.16/8,790.20
  6. Step 6: Final answer
    x = 6,935.55

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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.