Home / 11,322.37-16,986.93-5,403.70

Finding the Fourth Proportional to 11,322.37, 16,986.93 and 5,403.70

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Solution

The fourth proportional to 11,322.37, 16,986.93 and 5,403.70 is: 8,107.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,322.37 : 16,986.93 = 5,403.70 : x
  2. Step 2: Convert to fraction form
    11,322.37/16,986.93 = 5,403.70/x
  3. Step 3: Cross multiply
    11,322.37x = 16,986.93 × 5,403.70
  4. Step 4: Simplify right side
    11,322.37x = 91,792,273.64
  5. Step 5: Solve for x
    x = 91,792,273.64/11,322.37
  6. Step 6: Final answer
    x = 8,107.16

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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.