Home / 12,766.85-19,150.40-3,883.61

Finding the Fourth Proportional to 12,766.85, 19,150.40 and 3,883.61

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Solution

The fourth proportional to 12,766.85, 19,150.40 and 3,883.61 is: 5,825.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,766.85 : 19,150.40 = 3,883.61 : x
  2. Step 2: Convert to fraction form
    12,766.85/19,150.40 = 3,883.61/x
  3. Step 3: Cross multiply
    12,766.85x = 19,150.40 × 3,883.61
  4. Step 4: Simplify right side
    12,766.85x = 74,372,713.40
  5. Step 5: Solve for x
    x = 74,372,713.40/12,766.85
  6. Step 6: Final answer
    x = 5,825.46

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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.