Home / 18,450.39-25,454.21-11,364.51

Finding the Fourth Proportional to 18,450.39, 25,454.21 and 11,364.51

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Solution

The fourth proportional to 18,450.39, 25,454.21 and 11,364.51 is: 15,678.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,450.39 : 25,454.21 = 11,364.51 : x
  2. Step 2: Convert to fraction form
    18,450.39/25,454.21 = 11,364.51/x
  3. Step 3: Cross multiply
    18,450.39x = 25,454.21 × 11,364.51
  4. Step 4: Simplify right side
    18,450.39x = 289,274,624.09
  5. Step 5: Solve for x
    x = 289,274,624.09/18,450.39
  6. Step 6: Final answer
    x = 15,678.51

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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.