Home / 11,465.42-17,198.16-3,145.55

Finding the Fourth Proportional to 11,465.42, 17,198.16 and 3,145.55

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Solution

The fourth proportional to 11,465.42, 17,198.16 and 3,145.55 is: 4,718.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,465.42 : 17,198.16 = 3,145.55 : x
  2. Step 2: Convert to fraction form
    11,465.42/17,198.16 = 3,145.55/x
  3. Step 3: Cross multiply
    11,465.42x = 17,198.16 × 3,145.55
  4. Step 4: Simplify right side
    11,465.42x = 54,097,703.39
  5. Step 5: Solve for x
    x = 54,097,703.39/11,465.42
  6. Step 6: Final answer
    x = 4,718.33

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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.