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Finding the Fourth Proportional to 18,219.94, 27,333.02 and 8,360.06

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Solution

The fourth proportional to 18,219.94, 27,333.02 and 8,360.06 is: 12,541.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.94 : 27,333.02 = 8,360.06 : x
  2. Step 2: Convert to fraction form
    18,219.94/27,333.02 = 8,360.06/x
  3. Step 3: Cross multiply
    18,219.94x = 27,333.02 × 8,360.06
  4. Step 4: Simplify right side
    18,219.94x = 228,505,687.18
  5. Step 5: Solve for x
    x = 228,505,687.18/18,219.94
  6. Step 6: Final answer
    x = 12,541.52

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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.