Home / 18,222.66-25,121.61-13,751.46

Finding the Fourth Proportional to 18,222.66, 25,121.61 and 13,751.46

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Solution

The fourth proportional to 18,222.66, 25,121.61 and 13,751.46 is: 18,957.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,222.66 : 25,121.61 = 13,751.46 : x
  2. Step 2: Convert to fraction form
    18,222.66/25,121.61 = 13,751.46/x
  3. Step 3: Cross multiply
    18,222.66x = 25,121.61 × 13,751.46
  4. Step 4: Simplify right side
    18,222.66x = 345,458,815.05
  5. Step 5: Solve for x
    x = 345,458,815.05/18,222.66
  6. Step 6: Final answer
    x = 18,957.65

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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.