Home / 11,318.77-16,973.96-3,921.25

Finding the Fourth Proportional to 11,318.77, 16,973.96 and 3,921.25

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Solution

The fourth proportional to 11,318.77, 16,973.96 and 3,921.25 is: 5,880.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,318.77 : 16,973.96 = 3,921.25 : x
  2. Step 2: Convert to fraction form
    11,318.77/16,973.96 = 3,921.25/x
  3. Step 3: Cross multiply
    11,318.77x = 16,973.96 × 3,921.25
  4. Step 4: Simplify right side
    11,318.77x = 66,559,121.04
  5. Step 5: Solve for x
    x = 66,559,121.04/11,318.77
  6. Step 6: Final answer
    x = 5,880.42

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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.