Home / 11,518.88-17,278.34-3,198.92

Finding the Fourth Proportional to 11,518.88, 17,278.34 and 3,198.92

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Solution

The fourth proportional to 11,518.88, 17,278.34 and 3,198.92 is: 4,798.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.88 : 17,278.34 = 3,198.92 : x
  2. Step 2: Convert to fraction form
    11,518.88/17,278.34 = 3,198.92/x
  3. Step 3: Cross multiply
    11,518.88x = 17,278.34 × 3,198.92
  4. Step 4: Simplify right side
    11,518.88x = 55,271,925.01
  5. Step 5: Solve for x
    x = 55,271,925.01/11,518.88
  6. Step 6: Final answer
    x = 4,798.38

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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.