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Finding the Fourth Proportional to 13,049.83, 18,008.90 and 7,081.55

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Solution

The fourth proportional to 13,049.83, 18,008.90 and 7,081.55 is: 9,772.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,049.83 : 18,008.90 = 7,081.55 : x
  2. Step 2: Convert to fraction form
    13,049.83/18,008.90 = 7,081.55/x
  3. Step 3: Cross multiply
    13,049.83x = 18,008.90 × 7,081.55
  4. Step 4: Simplify right side
    13,049.83x = 127,530,925.80
  5. Step 5: Solve for x
    x = 127,530,925.80/13,049.83
  6. Step 6: Final answer
    x = 9,772.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.