Home / 18,887.22-28,318.68-7,194.06

Finding the Fourth Proportional to 18,887.22, 28,318.68 and 7,194.06

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Solution

The fourth proportional to 18,887.22, 28,318.68 and 7,194.06 is: 10,786.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887.22 : 28,318.68 = 7,194.06 : x
  2. Step 2: Convert to fraction form
    18,887.22/28,318.68 = 7,194.06/x
  3. Step 3: Cross multiply
    18,887.22x = 28,318.68 × 7,194.06
  4. Step 4: Simplify right side
    18,887.22x = 203,726,283.04
  5. Step 5: Solve for x
    x = 203,726,283.04/18,887.22
  6. Step 6: Final answer
    x = 10,786.46

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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.