Home / 11,378.81-17,067.69-3,984.93

Finding the Fourth Proportional to 11,378.81, 17,067.69 and 3,984.93

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Solution

The fourth proportional to 11,378.81, 17,067.69 and 3,984.93 is: 5,977.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,378.81 : 17,067.69 = 3,984.93 : x
  2. Step 2: Convert to fraction form
    11,378.81/17,067.69 = 3,984.93/x
  3. Step 3: Cross multiply
    11,378.81x = 17,067.69 × 3,984.93
  4. Step 4: Simplify right side
    11,378.81x = 68,013,549.91
  5. Step 5: Solve for x
    x = 68,013,549.91/11,378.81
  6. Step 6: Final answer
    x = 5,977.21

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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.