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Finding the Fourth Proportional to 18,000.60, 26,936.10 and 12,168.60

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Solution

The fourth proportional to 18,000.60, 26,936.10 and 12,168.60 is: 18,209.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,000.60 : 26,936.10 = 12,168.60 : x
  2. Step 2: Convert to fraction form
    18,000.60/26,936.10 = 12,168.60/x
  3. Step 3: Cross multiply
    18,000.60x = 26,936.10 × 12,168.60
  4. Step 4: Simplify right side
    18,000.60x = 327,774,626.46
  5. Step 5: Solve for x
    x = 327,774,626.46/18,000.60
  6. Step 6: Final answer
    x = 18,209.09

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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.