Home / 12,198.08-18,298.34-3,313.55

Finding the Fourth Proportional to 12,198.08, 18,298.34 and 3,313.55

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Solution

The fourth proportional to 12,198.08, 18,298.34 and 3,313.55 is: 4,970.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,198.08 : 18,298.34 = 3,313.55 : x
  2. Step 2: Convert to fraction form
    12,198.08/18,298.34 = 3,313.55/x
  3. Step 3: Cross multiply
    12,198.08x = 18,298.34 × 3,313.55
  4. Step 4: Simplify right side
    12,198.08x = 60,632,464.51
  5. Step 5: Solve for x
    x = 60,632,464.51/12,198.08
  6. Step 6: Final answer
    x = 4,970.66

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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.