Home / 9,647.12-14,469.06-2,720

Finding the Fourth Proportional to 9,647.12, 14,469.06 and 2,720

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Solution

The fourth proportional to 9,647.12, 14,469.06 and 2,720 is: 4,079.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,647.12 : 14,469.06 = 2,720 : x
  2. Step 2: Convert to fraction form
    9,647.12/14,469.06 = 2,720/x
  3. Step 3: Cross multiply
    9,647.12x = 14,469.06 × 2,720
  4. Step 4: Simplify right side
    9,647.12x = 39,355,843.20
  5. Step 5: Solve for x
    x = 39,355,843.20/9,647.12
  6. Step 6: Final answer
    x = 4,079.54

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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.