Home / 13,245.75-19,877.74-5,454.56

Finding the Fourth Proportional to 13,245.75, 19,877.74 and 5,454.56

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Solution

The fourth proportional to 13,245.75, 19,877.74 and 5,454.56 is: 8,185.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.75 : 19,877.74 = 5,454.56 : x
  2. Step 2: Convert to fraction form
    13,245.75/19,877.74 = 5,454.56/x
  3. Step 3: Cross multiply
    13,245.75x = 19,877.74 × 5,454.56
  4. Step 4: Simplify right side
    13,245.75x = 108,424,361.55
  5. Step 5: Solve for x
    x = 108,424,361.55/13,245.75
  6. Step 6: Final answer
    x = 8,185.60

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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.