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Finding the Fourth Proportional to 11,041.92, 15,219.09 and 7,690.95

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Solution

The fourth proportional to 11,041.92, 15,219.09 and 7,690.95 is: 10,600.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,041.92 : 15,219.09 = 7,690.95 : x
  2. Step 2: Convert to fraction form
    11,041.92/15,219.09 = 7,690.95/x
  3. Step 3: Cross multiply
    11,041.92x = 15,219.09 × 7,690.95
  4. Step 4: Simplify right side
    11,041.92x = 117,049,260.24
  5. Step 5: Solve for x
    x = 117,049,260.24/11,041.92
  6. Step 6: Final answer
    x = 10,600.44

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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.