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Finding the Fourth Proportional to 12,143.18, 18,200.18 and 6,596.30

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Solution

The fourth proportional to 12,143.18, 18,200.18 and 6,596.30 is: 9,886.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143.18 : 18,200.18 = 6,596.30 : x
  2. Step 2: Convert to fraction form
    12,143.18/18,200.18 = 6,596.30/x
  3. Step 3: Cross multiply
    12,143.18x = 18,200.18 × 6,596.30
  4. Step 4: Simplify right side
    12,143.18x = 120,053,847.33
  5. Step 5: Solve for x
    x = 120,053,847.33/12,143.18
  6. Step 6: Final answer
    x = 9,886.52

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.