Home / 8,518.91-12,783.68-3,254.39

Finding the Fourth Proportional to 8,518.91, 12,783.68 and 3,254.39

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Solution

The fourth proportional to 8,518.91, 12,783.68 and 3,254.39 is: 4,883.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518.91 : 12,783.68 = 3,254.39 : x
  2. Step 2: Convert to fraction form
    8,518.91/12,783.68 = 3,254.39/x
  3. Step 3: Cross multiply
    8,518.91x = 12,783.68 × 3,254.39
  4. Step 4: Simplify right side
    8,518.91x = 41,603,120.45
  5. Step 5: Solve for x
    x = 41,603,120.45/8,518.91
  6. Step 6: Final answer
    x = 4,883.62

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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.