Home / 18,644.49-27,980.70-11,634.75

Finding the Fourth Proportional to 18,644.49, 27,980.70 and 11,634.75

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Solution

The fourth proportional to 18,644.49, 27,980.70 and 11,634.75 is: 17,460.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,644.49 : 27,980.70 = 11,634.75 : x
  2. Step 2: Convert to fraction form
    18,644.49/27,980.70 = 11,634.75/x
  3. Step 3: Cross multiply
    18,644.49x = 27,980.70 × 11,634.75
  4. Step 4: Simplify right side
    18,644.49x = 325,548,449.33
  5. Step 5: Solve for x
    x = 325,548,449.33/18,644.49
  6. Step 6: Final answer
    x = 17,460.84

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1.5x scale

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.