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Finding the Fourth Proportional to 18,254.99, 27,382.49 and 7,722.28

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Solution

The fourth proportional to 18,254.99, 27,382.49 and 7,722.28 is: 11,583.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,254.99 : 27,382.49 = 7,722.28 : x
  2. Step 2: Convert to fraction form
    18,254.99/27,382.49 = 7,722.28/x
  3. Step 3: Cross multiply
    18,254.99x = 27,382.49 × 7,722.28
  4. Step 4: Simplify right side
    18,254.99x = 211,455,254.88
  5. Step 5: Solve for x
    x = 211,455,254.88/18,254.99
  6. Step 6: Final answer
    x = 11,583.42

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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.