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Finding the Fourth Proportional to 18,327.92, 27,486.72 and 8,962.88

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Solution

The fourth proportional to 18,327.92, 27,486.72 and 8,962.88 is: 13,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,327.92 : 27,486.72 = 8,962.88 : x
  2. Step 2: Convert to fraction form
    18,327.92/27,486.72 = 8,962.88/x
  3. Step 3: Cross multiply
    18,327.92x = 27,486.72 × 8,962.88
  4. Step 4: Simplify right side
    18,327.92x = 246,360,172.95
  5. Step 5: Solve for x
    x = 246,360,172.95/18,327.92
  6. Step 6: Final answer
    x = 13,441.80

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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.