Home / 13,227.12-19,840.56-3,993.12

Finding the Fourth Proportional to 13,227.12, 19,840.56 and 3,993.12

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Solution

The fourth proportional to 13,227.12, 19,840.56 and 3,993.12 is: 5,989.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,227.12 : 19,840.56 = 3,993.12 : x
  2. Step 2: Convert to fraction form
    13,227.12/19,840.56 = 3,993.12/x
  3. Step 3: Cross multiply
    13,227.12x = 19,840.56 × 3,993.12
  4. Step 4: Simplify right side
    13,227.12x = 79,225,736.95
  5. Step 5: Solve for x
    x = 79,225,736.95/13,227.12
  6. Step 6: Final answer
    x = 5,989.64

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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.