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Finding the Fourth Proportional to 18,224.30, 27,327 and 8,355.08

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Solution

The fourth proportional to 18,224.30, 27,327 and 8,355.08 is: 12,528.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,224.30 : 27,327 = 8,355.08 : x
  2. Step 2: Convert to fraction form
    18,224.30/27,327 = 8,355.08/x
  3. Step 3: Cross multiply
    18,224.30x = 27,327 × 8,355.08
  4. Step 4: Simplify right side
    18,224.30x = 228,319,271.16
  5. Step 5: Solve for x
    x = 228,319,271.16/18,224.30
  6. Step 6: Final answer
    x = 12,528.29

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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.