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Finding the Fourth Proportional to 18,153.99, 27,231.01 and 5,674.08

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Solution

The fourth proportional to 18,153.99, 27,231.01 and 5,674.08 is: 8,511.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,153.99 : 27,231.01 = 5,674.08 : x
  2. Step 2: Convert to fraction form
    18,153.99/27,231.01 = 5,674.08/x
  3. Step 3: Cross multiply
    18,153.99x = 27,231.01 × 5,674.08
  4. Step 4: Simplify right side
    18,153.99x = 154,511,038.43
  5. Step 5: Solve for x
    x = 154,511,038.43/18,153.99
  6. Step 6: Final answer
    x = 8,511.13

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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.