Home / 8,518.13-12,758.72-4,126.38

Finding the Fourth Proportional to 8,518.13, 12,758.72 and 4,126.38

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Solution

The fourth proportional to 8,518.13, 12,758.72 and 4,126.38 is: 6,180.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518.13 : 12,758.72 = 4,126.38 : x
  2. Step 2: Convert to fraction form
    8,518.13/12,758.72 = 4,126.38/x
  3. Step 3: Cross multiply
    8,518.13x = 12,758.72 × 4,126.38
  4. Step 4: Simplify right side
    8,518.13x = 52,647,258.56
  5. Step 5: Solve for x
    x = 52,647,258.56/8,518.13
  6. Step 6: Final answer
    x = 6,180.61

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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.