Home / 7,665.11-11,495.83-2,118.33

Finding the Fourth Proportional to 7,665.11, 11,495.83 and 2,118.33

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Solution

The fourth proportional to 7,665.11, 11,495.83 and 2,118.33 is: 3,176.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,665.11 : 11,495.83 = 2,118.33 : x
  2. Step 2: Convert to fraction form
    7,665.11/11,495.83 = 2,118.33/x
  3. Step 3: Cross multiply
    7,665.11x = 11,495.83 × 2,118.33
  4. Step 4: Simplify right side
    7,665.11x = 24,351,961.56
  5. Step 5: Solve for x
    x = 24,351,961.56/7,665.11
  6. Step 6: Final answer
    x = 3,176.99

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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.