Home / 13,178.94-19,769.42-3,819.08

Finding the Fourth Proportional to 13,178.94, 19,769.42 and 3,819.08

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Solution

The fourth proportional to 13,178.94, 19,769.42 and 3,819.08 is: 5,728.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178.94 : 19,769.42 = 3,819.08 : x
  2. Step 2: Convert to fraction form
    13,178.94/19,769.42 = 3,819.08/x
  3. Step 3: Cross multiply
    13,178.94x = 19,769.42 × 3,819.08
  4. Step 4: Simplify right side
    13,178.94x = 75,501,034.02
  5. Step 5: Solve for x
    x = 75,501,034.02/13,178.94
  6. Step 6: Final answer
    x = 5,728.92

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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.