Home / 11,619.74-17,420.67-5,771.81

Finding the Fourth Proportional to 11,619.74, 17,420.67 and 5,771.81

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Solution

The fourth proportional to 11,619.74, 17,420.67 and 5,771.81 is: 8,653.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,619.74 : 17,420.67 = 5,771.81 : x
  2. Step 2: Convert to fraction form
    11,619.74/17,420.67 = 5,771.81/x
  3. Step 3: Cross multiply
    11,619.74x = 17,420.67 × 5,771.81
  4. Step 4: Simplify right side
    11,619.74x = 100,548,710.21
  5. Step 5: Solve for x
    x = 100,548,710.21/11,619.74
  6. Step 6: Final answer
    x = 8,653.27

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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.