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Finding the Fourth Proportional to 8,765.12, 13,133.08 and 6,163.40

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Solution

The fourth proportional to 8,765.12, 13,133.08 and 6,163.40 is: 9,234.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,765.12 : 13,133.08 = 6,163.40 : x
  2. Step 2: Convert to fraction form
    8,765.12/13,133.08 = 6,163.40/x
  3. Step 3: Cross multiply
    8,765.12x = 13,133.08 × 6,163.40
  4. Step 4: Simplify right side
    8,765.12x = 80,944,425.27
  5. Step 5: Solve for x
    x = 80,944,425.27/8,765.12
  6. Step 6: Final answer
    x = 9,234.83

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1.5x scale

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.