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Finding the Fourth Proportional to 18,231.67, 27,333.79 and 7,714.00

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Solution

The fourth proportional to 18,231.67, 27,333.79 and 7,714.00 is: 11,565.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231.67 : 27,333.79 = 7,714.00 : x
  2. Step 2: Convert to fraction form
    18,231.67/27,333.79 = 7,714.00/x
  3. Step 3: Cross multiply
    18,231.67x = 27,333.79 × 7,714.00
  4. Step 4: Simplify right side
    18,231.67x = 210,852,719.39
  5. Step 5: Solve for x
    x = 210,852,719.39/18,231.67
  6. Step 6: Final answer
    x = 11,565.19

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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.