Home / 9,628.11-13,267.53-8,115.80

Finding the Fourth Proportional to 9,628.11, 13,267.53 and 8,115.80

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Solution

The fourth proportional to 9,628.11, 13,267.53 and 8,115.80 is: 11,183.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,628.11 : 13,267.53 = 8,115.80 : x
  2. Step 2: Convert to fraction form
    9,628.11/13,267.53 = 8,115.80/x
  3. Step 3: Cross multiply
    9,628.11x = 13,267.53 × 8,115.80
  4. Step 4: Simplify right side
    9,628.11x = 107,676,553.64
  5. Step 5: Solve for x
    x = 107,676,553.64/9,628.11
  6. Step 6: Final answer
    x = 11,183.56

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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.