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Finding the Fourth Proportional to 9,369.63, 14,052.87 and 3,128.49

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Solution

The fourth proportional to 9,369.63, 14,052.87 and 3,128.49 is: 4,692.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,369.63 : 14,052.87 = 3,128.49 : x
  2. Step 2: Convert to fraction form
    9,369.63/14,052.87 = 3,128.49/x
  3. Step 3: Cross multiply
    9,369.63x = 14,052.87 × 3,128.49
  4. Step 4: Simplify right side
    9,369.63x = 43,964,263.27
  5. Step 5: Solve for x
    x = 43,964,263.27/9,369.63
  6. Step 6: Final answer
    x = 4,692.21

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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.