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Finding the Fourth Proportional to 9,351.03, 12,905.76 and 6,163.79

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Solution

The fourth proportional to 9,351.03, 12,905.76 and 6,163.79 is: 8,506.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,351.03 : 12,905.76 = 6,163.79 : x
  2. Step 2: Convert to fraction form
    9,351.03/12,905.76 = 6,163.79/x
  3. Step 3: Cross multiply
    9,351.03x = 12,905.76 × 6,163.79
  4. Step 4: Simplify right side
    9,351.03x = 79,548,353.02
  5. Step 5: Solve for x
    x = 79,548,353.02/9,351.03
  6. Step 6: Final answer
    x = 8,506.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.