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Finding the Fourth Proportional to 26,718, 40,079.16 and 8,250

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Solution

The fourth proportional to 26,718, 40,079.16 and 8,250 is: 12,375.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,718 : 40,079.16 = 8,250 : x
  2. Step 2: Convert to fraction form
    26,718/40,079.16 = 8,250/x
  3. Step 3: Cross multiply
    26,718x = 40,079.16 × 8,250
  4. Step 4: Simplify right side
    26,718x = 330,653,070
  5. Step 5: Solve for x
    x = 330,653,070/26,718
  6. Step 6: Final answer
    x = 12,375.67

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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.