Home / 13,190.08-19,784.96-3,956

Finding the Fourth Proportional to 13,190.08, 19,784.96 and 3,956

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Solution

The fourth proportional to 13,190.08, 19,784.96 and 3,956 is: 5,933.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.08 : 19,784.96 = 3,956 : x
  2. Step 2: Convert to fraction form
    13,190.08/19,784.96 = 3,956/x
  3. Step 3: Cross multiply
    13,190.08x = 19,784.96 × 3,956
  4. Step 4: Simplify right side
    13,190.08x = 78,269,301.76
  5. Step 5: Solve for x
    x = 78,269,301.76/13,190.08
  6. Step 6: Final answer
    x = 5,933.95

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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.