Home / 13,328.45-19,993.84-3,840.82

Finding the Fourth Proportional to 13,328.45, 19,993.84 and 3,840.82

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Solution

The fourth proportional to 13,328.45, 19,993.84 and 3,840.82 is: 5,761.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328.45 : 19,993.84 = 3,840.82 : x
  2. Step 2: Convert to fraction form
    13,328.45/19,993.84 = 3,840.82/x
  3. Step 3: Cross multiply
    13,328.45x = 19,993.84 × 3,840.82
  4. Step 4: Simplify right side
    13,328.45x = 76,792,680.96
  5. Step 5: Solve for x
    x = 76,792,680.96/13,328.45
  6. Step 6: Final answer
    x = 5,761.56

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1.5x scale

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.