Home / 9,371.72-14,052.80-3,129.48

Finding the Fourth Proportional to 9,371.72, 14,052.80 and 3,129.48

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Solution

The fourth proportional to 9,371.72, 14,052.80 and 3,129.48 is: 4,692.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,371.72 : 14,052.80 = 3,129.48 : x
  2. Step 2: Convert to fraction form
    9,371.72/14,052.80 = 3,129.48/x
  3. Step 3: Cross multiply
    9,371.72x = 14,052.80 × 3,129.48
  4. Step 4: Simplify right side
    9,371.72x = 43,977,940.90
  5. Step 5: Solve for x
    x = 43,977,940.90/9,371.72
  6. Step 6: Final answer
    x = 4,692.62

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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.