Home / 11,465.38-17,198.76-3,145.06

Finding the Fourth Proportional to 11,465.38, 17,198.76 and 3,145.06

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Solution

The fourth proportional to 11,465.38, 17,198.76 and 3,145.06 is: 4,717.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,465.38 : 17,198.76 = 3,145.06 : x
  2. Step 2: Convert to fraction form
    11,465.38/17,198.76 = 3,145.06/x
  3. Step 3: Cross multiply
    11,465.38x = 17,198.76 × 3,145.06
  4. Step 4: Simplify right side
    11,465.38x = 54,091,132.13
  5. Step 5: Solve for x
    x = 54,091,132.13/11,465.38
  6. Step 6: Final answer
    x = 4,717.78

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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.