Home / 13,977.44-20,969.76-4,116.32

Finding the Fourth Proportional to 13,977.44, 20,969.76 and 4,116.32

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Solution

The fourth proportional to 13,977.44, 20,969.76 and 4,116.32 is: 6,175.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.44 : 20,969.76 = 4,116.32 : x
  2. Step 2: Convert to fraction form
    13,977.44/20,969.76 = 4,116.32/x
  3. Step 3: Cross multiply
    13,977.44x = 20,969.76 × 4,116.32
  4. Step 4: Simplify right side
    13,977.44x = 86,318,242.48
  5. Step 5: Solve for x
    x = 86,318,242.48/13,977.44
  6. Step 6: Final answer
    x = 6,175.54

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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.