Home / 13,247.88-18,268.08-11,121.95

Finding the Fourth Proportional to 13,247.88, 18,268.08 and 11,121.95

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Solution

The fourth proportional to 13,247.88, 18,268.08 and 11,121.95 is: 15,336.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.88 : 18,268.08 = 11,121.95 : x
  2. Step 2: Convert to fraction form
    13,247.88/18,268.08 = 11,121.95/x
  3. Step 3: Cross multiply
    13,247.88x = 18,268.08 × 11,121.95
  4. Step 4: Simplify right side
    13,247.88x = 203,176,581.02
  5. Step 5: Solve for x
    x = 203,176,581.02/13,247.88
  6. Step 6: Final answer
    x = 15,336.54

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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.