Home / 18,222.14-27,333.22-7,129.20

Finding the Fourth Proportional to 18,222.14, 27,333.22 and 7,129.20

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Solution

The fourth proportional to 18,222.14, 27,333.22 and 7,129.20 is: 10,693.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,222.14 : 27,333.22 = 7,129.20 : x
  2. Step 2: Convert to fraction form
    18,222.14/27,333.22 = 7,129.20/x
  3. Step 3: Cross multiply
    18,222.14x = 27,333.22 × 7,129.20
  4. Step 4: Simplify right side
    18,222.14x = 194,863,992.02
  5. Step 5: Solve for x
    x = 194,863,992.02/18,222.14
  6. Step 6: Final answer
    x = 10,693.80

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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.