Home / 12,668.05-18,995.70-3,901.83

Finding the Fourth Proportional to 12,668.05, 18,995.70 and 3,901.83

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Solution

The fourth proportional to 12,668.05, 18,995.70 and 3,901.83 is: 5,850.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,668.05 : 18,995.70 = 3,901.83 : x
  2. Step 2: Convert to fraction form
    12,668.05/18,995.70 = 3,901.83/x
  3. Step 3: Cross multiply
    12,668.05x = 18,995.70 × 3,901.83
  4. Step 4: Simplify right side
    12,668.05x = 74,117,992.13
  5. Step 5: Solve for x
    x = 74,117,992.13/12,668.05
  6. Step 6: Final answer
    x = 5,850.78

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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.