Home / 18,185.31-27,272.50-11,945.07

Finding the Fourth Proportional to 18,185.31, 27,272.50 and 11,945.07

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Solution

The fourth proportional to 18,185.31, 27,272.50 and 11,945.07 is: 17,914.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,185.31 : 27,272.50 = 11,945.07 : x
  2. Step 2: Convert to fraction form
    18,185.31/27,272.50 = 11,945.07/x
  3. Step 3: Cross multiply
    18,185.31x = 27,272.50 × 11,945.07
  4. Step 4: Simplify right side
    18,185.31x = 325,771,891.71
  5. Step 5: Solve for x
    x = 325,771,891.71/18,185.31
  6. Step 6: Final answer
    x = 17,914.01

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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.