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Finding the Fourth Proportional to 11,518.10, 15,894.99 and 6,482.60

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Solution

The fourth proportional to 11,518.10, 15,894.99 and 6,482.60 is: 8,945.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.10 : 15,894.99 = 6,482.60 : x
  2. Step 2: Convert to fraction form
    11,518.10/15,894.99 = 6,482.60/x
  3. Step 3: Cross multiply
    11,518.10x = 15,894.99 × 6,482.60
  4. Step 4: Simplify right side
    11,518.10x = 103,040,782.70
  5. Step 5: Solve for x
    x = 103,040,782.70/11,518.10
  6. Step 6: Final answer
    x = 8,945.99

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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.