Home / 11,661.42-17,464.29-6,388.53

Finding the Fourth Proportional to 11,661.42, 17,464.29 and 6,388.53

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Solution

The fourth proportional to 11,661.42, 17,464.29 and 6,388.53 is: 9,567.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,661.42 : 17,464.29 = 6,388.53 : x
  2. Step 2: Convert to fraction form
    11,661.42/17,464.29 = 6,388.53/x
  3. Step 3: Cross multiply
    11,661.42x = 17,464.29 × 6,388.53
  4. Step 4: Simplify right side
    11,661.42x = 111,571,140.59
  5. Step 5: Solve for x
    x = 111,571,140.59/11,661.42
  6. Step 6: Final answer
    x = 9,567.54

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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.