Home / 13,072.89-19,609.79-4,188.49

Finding the Fourth Proportional to 13,072.89, 19,609.79 and 4,188.49

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Solution

The fourth proportional to 13,072.89, 19,609.79 and 4,188.49 is: 6,282.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,072.89 : 19,609.79 = 4,188.49 : x
  2. Step 2: Convert to fraction form
    13,072.89/19,609.79 = 4,188.49/x
  3. Step 3: Cross multiply
    13,072.89x = 19,609.79 × 4,188.49
  4. Step 4: Simplify right side
    13,072.89x = 82,135,409.32
  5. Step 5: Solve for x
    x = 82,135,409.32/13,072.89
  6. Step 6: Final answer
    x = 6,282.88

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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.