Home / 13,074.75-19,615.46-3,840.75

Finding the Fourth Proportional to 13,074.75, 19,615.46 and 3,840.75

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Solution

The fourth proportional to 13,074.75, 19,615.46 and 3,840.75 is: 5,762.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,074.75 : 19,615.46 = 3,840.75 : x
  2. Step 2: Convert to fraction form
    13,074.75/19,615.46 = 3,840.75/x
  3. Step 3: Cross multiply
    13,074.75x = 19,615.46 × 3,840.75
  4. Step 4: Simplify right side
    13,074.75x = 75,338,058.79
  5. Step 5: Solve for x
    x = 75,338,058.79/13,074.75
  6. Step 6: Final answer
    x = 5,762.10

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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.