Home / 13,010.40-19,515.75-3,149.73

Finding the Fourth Proportional to 13,010.40, 19,515.75 and 3,149.73

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Solution

The fourth proportional to 13,010.40, 19,515.75 and 3,149.73 is: 4,724.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,010.40 : 19,515.75 = 3,149.73 : x
  2. Step 2: Convert to fraction form
    13,010.40/19,515.75 = 3,149.73/x
  3. Step 3: Cross multiply
    13,010.40x = 19,515.75 × 3,149.73
  4. Step 4: Simplify right side
    13,010.40x = 61,469,343.25
  5. Step 5: Solve for x
    x = 61,469,343.25/13,010.40
  6. Step 6: Final answer
    x = 4,724.63

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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.