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Finding the Fourth Proportional to 18,271.98, 27,408.65 and 8,274.83

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Solution

The fourth proportional to 18,271.98, 27,408.65 and 8,274.83 is: 12,412.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.98 : 27,408.65 = 8,274.83 : x
  2. Step 2: Convert to fraction form
    18,271.98/27,408.65 = 8,274.83/x
  3. Step 3: Cross multiply
    18,271.98x = 27,408.65 × 8,274.83
  4. Step 4: Simplify right side
    18,271.98x = 226,801,740.86
  5. Step 5: Solve for x
    x = 226,801,740.86/18,271.98
  6. Step 6: Final answer
    x = 12,412.54

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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.