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Finding the Fourth Proportional to 8,704.66, 13,028.10 and 7,926.45

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Solution

The fourth proportional to 8,704.66, 13,028.10 and 7,926.45 is: 11,863.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,704.66 : 13,028.10 = 7,926.45 : x
  2. Step 2: Convert to fraction form
    8,704.66/13,028.10 = 7,926.45/x
  3. Step 3: Cross multiply
    8,704.66x = 13,028.10 × 7,926.45
  4. Step 4: Simplify right side
    8,704.66x = 103,266,583.25
  5. Step 5: Solve for x
    x = 103,266,583.25/8,704.66
  6. Step 6: Final answer
    x = 11,863.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.