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Finding the Fourth Proportional to 12,000.51, 17,996.72 and 4,208.31

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Solution

The fourth proportional to 12,000.51, 17,996.72 and 4,208.31 is: 6,311.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,000.51 : 17,996.72 = 4,208.31 : x
  2. Step 2: Convert to fraction form
    12,000.51/17,996.72 = 4,208.31/x
  3. Step 3: Cross multiply
    12,000.51x = 17,996.72 × 4,208.31
  4. Step 4: Simplify right side
    12,000.51x = 75,735,755.70
  5. Step 5: Solve for x
    x = 75,735,755.70/12,000.51
  6. Step 6: Final answer
    x = 6,311.04

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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.