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Finding the Fourth Proportional to 18,262.45, 27,397.39 and 8,262.39

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Solution

The fourth proportional to 18,262.45, 27,397.39 and 8,262.39 is: 12,395.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,262.45 : 27,397.39 = 8,262.39 : x
  2. Step 2: Convert to fraction form
    18,262.45/27,397.39 = 8,262.39/x
  3. Step 3: Cross multiply
    18,262.45x = 27,397.39 × 8,262.39
  4. Step 4: Simplify right side
    18,262.45x = 226,367,864.63
  5. Step 5: Solve for x
    x = 226,367,864.63/18,262.45
  6. Step 6: Final answer
    x = 12,395.27

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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.