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Finding the Fourth Proportional to 18,000.62, 26,982.45 and 8,626.94

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Solution

The fourth proportional to 18,000.62, 26,982.45 and 8,626.94 is: 12,931.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,000.62 : 26,982.45 = 8,626.94 : x
  2. Step 2: Convert to fraction form
    18,000.62/26,982.45 = 8,626.94/x
  3. Step 3: Cross multiply
    18,000.62x = 26,982.45 × 8,626.94
  4. Step 4: Simplify right side
    18,000.62x = 232,775,977.20
  5. Step 5: Solve for x
    x = 232,775,977.20/18,000.62
  6. Step 6: Final answer
    x = 12,931.55

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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.