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Finding the Fourth Proportional to 12,118.95, 16,724.07 and 6,741.45

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Solution

The fourth proportional to 12,118.95, 16,724.07 and 6,741.45 is: 9,303.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,118.95 : 16,724.07 = 6,741.45 : x
  2. Step 2: Convert to fraction form
    12,118.95/16,724.07 = 6,741.45/x
  3. Step 3: Cross multiply
    12,118.95x = 16,724.07 × 6,741.45
  4. Step 4: Simplify right side
    12,118.95x = 112,744,481.70
  5. Step 5: Solve for x
    x = 112,744,481.70/12,118.95
  6. Step 6: Final answer
    x = 9,303.16

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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.