Home / 13,844.10-20,741.40-8,424.60

Finding the Fourth Proportional to 13,844.10, 20,741.40 and 8,424.60

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Solution

The fourth proportional to 13,844.10, 20,741.40 and 8,424.60 is: 12,621.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,844.10 : 20,741.40 = 8,424.60 : x
  2. Step 2: Convert to fraction form
    13,844.10/20,741.40 = 8,424.60/x
  3. Step 3: Cross multiply
    13,844.10x = 20,741.40 × 8,424.60
  4. Step 4: Simplify right side
    13,844.10x = 174,737,998.44
  5. Step 5: Solve for x
    x = 174,737,998.44/13,844.10
  6. Step 6: Final answer
    x = 12,621.84

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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.