Home / 12,914.82-19,370.40-4,148.60

Finding the Fourth Proportional to 12,914.82, 19,370.40 and 4,148.60

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Solution

The fourth proportional to 12,914.82, 19,370.40 and 4,148.60 is: 6,222.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,914.82 : 19,370.40 = 4,148.60 : x
  2. Step 2: Convert to fraction form
    12,914.82/19,370.40 = 4,148.60/x
  3. Step 3: Cross multiply
    12,914.82x = 19,370.40 × 4,148.60
  4. Step 4: Simplify right side
    12,914.82x = 80,360,041.44
  5. Step 5: Solve for x
    x = 80,360,041.44/12,914.82
  6. Step 6: Final answer
    x = 6,222.31

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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.