Home / 12,665.34-18,998.01-3,305.34

Finding the Fourth Proportional to 12,665.34, 18,998.01 and 3,305.34

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Solution

The fourth proportional to 12,665.34, 18,998.01 and 3,305.34 is: 4,958.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,665.34 : 18,998.01 = 3,305.34 : x
  2. Step 2: Convert to fraction form
    12,665.34/18,998.01 = 3,305.34/x
  3. Step 3: Cross multiply
    12,665.34x = 18,998.01 × 3,305.34
  4. Step 4: Simplify right side
    12,665.34x = 62,794,882.37
  5. Step 5: Solve for x
    x = 62,794,882.37/12,665.34
  6. Step 6: Final answer
    x = 4,958.01

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Similar ratio
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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.