Home / 8,519.08-12,768.84-3,320.56

Finding the Fourth Proportional to 8,519.08, 12,768.84 and 3,320.56

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Solution

The fourth proportional to 8,519.08, 12,768.84 and 3,320.56 is: 4,977.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.08 : 12,768.84 = 3,320.56 : x
  2. Step 2: Convert to fraction form
    8,519.08/12,768.84 = 3,320.56/x
  3. Step 3: Cross multiply
    8,519.08x = 12,768.84 × 3,320.56
  4. Step 4: Simplify right side
    8,519.08x = 42,399,699.35
  5. Step 5: Solve for x
    x = 42,399,699.35/8,519.08
  6. Step 6: Final answer
    x = 4,977.03

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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.