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Finding the Fourth Proportional to 18,612.28, 27,921.84 and 6,133.04

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Solution

The fourth proportional to 18,612.28, 27,921.84 and 6,133.04 is: 9,200.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612.28 : 27,921.84 = 6,133.04 : x
  2. Step 2: Convert to fraction form
    18,612.28/27,921.84 = 6,133.04/x
  3. Step 3: Cross multiply
    18,612.28x = 27,921.84 × 6,133.04
  4. Step 4: Simplify right side
    18,612.28x = 171,245,761.59
  5. Step 5: Solve for x
    x = 171,245,761.59/18,612.28
  6. Step 6: Final answer
    x = 9,200.69

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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.