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Finding the Fourth Proportional to 18,622.26, 27,936.27 and 8,762.58

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Solution

The fourth proportional to 18,622.26, 27,936.27 and 8,762.58 is: 13,145.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,622.26 : 27,936.27 = 8,762.58 : x
  2. Step 2: Convert to fraction form
    18,622.26/27,936.27 = 8,762.58/x
  3. Step 3: Cross multiply
    18,622.26x = 27,936.27 × 8,762.58
  4. Step 4: Simplify right side
    18,622.26x = 244,793,800.78
  5. Step 5: Solve for x
    x = 244,793,800.78/18,622.26
  6. Step 6: Final answer
    x = 13,145.23

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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.