Home / 13,021.85-19,533.93-3,661.95

Finding the Fourth Proportional to 13,021.85, 19,533.93 and 3,661.95

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Solution

The fourth proportional to 13,021.85, 19,533.93 and 3,661.95 is: 5,493.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.85 : 19,533.93 = 3,661.95 : x
  2. Step 2: Convert to fraction form
    13,021.85/19,533.93 = 3,661.95/x
  3. Step 3: Cross multiply
    13,021.85x = 19,533.93 × 3,661.95
  4. Step 4: Simplify right side
    13,021.85x = 71,532,274.96
  5. Step 5: Solve for x
    x = 71,532,274.96/13,021.85
  6. Step 6: Final answer
    x = 5,493.25

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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.