Home / 12,723.18-19,087.54-3,958.80

Finding the Fourth Proportional to 12,723.18, 19,087.54 and 3,958.80

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Solution

The fourth proportional to 12,723.18, 19,087.54 and 3,958.80 is: 5,939.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,723.18 : 19,087.54 = 3,958.80 : x
  2. Step 2: Convert to fraction form
    12,723.18/19,087.54 = 3,958.80/x
  3. Step 3: Cross multiply
    12,723.18x = 19,087.54 × 3,958.80
  4. Step 4: Simplify right side
    12,723.18x = 75,563,743.46
  5. Step 5: Solve for x
    x = 75,563,743.46/12,723.18
  6. Step 6: Final answer
    x = 5,939.06

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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.