Home / 18,250.09-27,339.63-11,991.08

Finding the Fourth Proportional to 18,250.09, 27,339.63 and 11,991.08

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Solution

The fourth proportional to 18,250.09, 27,339.63 and 11,991.08 is: 17,963.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,250.09 : 27,339.63 = 11,991.08 : x
  2. Step 2: Convert to fraction form
    18,250.09/27,339.63 = 11,991.08/x
  3. Step 3: Cross multiply
    18,250.09x = 27,339.63 × 11,991.08
  4. Step 4: Simplify right side
    18,250.09x = 327,831,763.05
  5. Step 5: Solve for x
    x = 327,831,763.05/18,250.09
  6. Step 6: Final answer
    x = 17,963.30

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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.