Home / 12,666.24-18,997.71-3,900.96

Finding the Fourth Proportional to 12,666.24, 18,997.71 and 3,900.96

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Solution

The fourth proportional to 12,666.24, 18,997.71 and 3,900.96 is: 5,850.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.24 : 18,997.71 = 3,900.96 : x
  2. Step 2: Convert to fraction form
    12,666.24/18,997.71 = 3,900.96/x
  3. Step 3: Cross multiply
    12,666.24x = 18,997.71 × 3,900.96
  4. Step 4: Simplify right side
    12,666.24x = 74,109,306.80
  5. Step 5: Solve for x
    x = 74,109,306.80/12,666.24
  6. Step 6: Final answer
    x = 5,850.93

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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.