Home / 13,241.78-19,862.66-3,380.70

Finding the Fourth Proportional to 13,241.78, 19,862.66 and 3,380.70

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Solution

The fourth proportional to 13,241.78, 19,862.66 and 3,380.70 is: 5,071.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,241.78 : 19,862.66 = 3,380.70 : x
  2. Step 2: Convert to fraction form
    13,241.78/19,862.66 = 3,380.70/x
  3. Step 3: Cross multiply
    13,241.78x = 19,862.66 × 3,380.70
  4. Step 4: Simplify right side
    13,241.78x = 67,149,694.66
  5. Step 5: Solve for x
    x = 67,149,694.66/13,241.78
  6. Step 6: Final answer
    x = 5,071.05

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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.