Home / 8,315.25-12,469.53-3,049.03

Finding the Fourth Proportional to 8,315.25, 12,469.53 and 3,049.03

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Solution

The fourth proportional to 8,315.25, 12,469.53 and 3,049.03 is: 4,572.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.25 : 12,469.53 = 3,049.03 : x
  2. Step 2: Convert to fraction form
    8,315.25/12,469.53 = 3,049.03/x
  3. Step 3: Cross multiply
    8,315.25x = 12,469.53 × 3,049.03
  4. Step 4: Simplify right side
    8,315.25x = 38,019,971.06
  5. Step 5: Solve for x
    x = 38,019,971.06/8,315.25
  6. Step 6: Final answer
    x = 4,572.32

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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.