Home / 13,213.27-18,223.72-11,616.54

Finding the Fourth Proportional to 13,213.27, 18,223.72 and 11,616.54

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Solution

The fourth proportional to 13,213.27, 18,223.72 and 11,616.54 is: 16,021.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.27 : 18,223.72 = 11,616.54 : x
  2. Step 2: Convert to fraction form
    13,213.27/18,223.72 = 11,616.54/x
  3. Step 3: Cross multiply
    13,213.27x = 18,223.72 × 11,616.54
  4. Step 4: Simplify right side
    13,213.27x = 211,696,474.95
  5. Step 5: Solve for x
    x = 211,696,474.95/13,213.27
  6. Step 6: Final answer
    x = 16,021.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.