Home / 11,776.42-17,666.45-3,984.63

Finding the Fourth Proportional to 11,776.42, 17,666.45 and 3,984.63

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Solution

The fourth proportional to 11,776.42, 17,666.45 and 3,984.63 is: 5,977.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,776.42 : 17,666.45 = 3,984.63 : x
  2. Step 2: Convert to fraction form
    11,776.42/17,666.45 = 3,984.63/x
  3. Step 3: Cross multiply
    11,776.42x = 17,666.45 × 3,984.63
  4. Step 4: Simplify right side
    11,776.42x = 70,394,266.66
  5. Step 5: Solve for x
    x = 70,394,266.66/11,776.42
  6. Step 6: Final answer
    x = 5,977.56

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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.