Home / 11,784.42-17,679.92-4,769.36

Finding the Fourth Proportional to 11,784.42, 17,679.92 and 4,769.36

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Solution

The fourth proportional to 11,784.42, 17,679.92 and 4,769.36 is: 7,155.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,784.42 : 17,679.92 = 4,769.36 : x
  2. Step 2: Convert to fraction form
    11,784.42/17,679.92 = 4,769.36/x
  3. Step 3: Cross multiply
    11,784.42x = 17,679.92 × 4,769.36
  4. Step 4: Simplify right side
    11,784.42x = 84,321,903.25
  5. Step 5: Solve for x
    x = 84,321,903.25/11,784.42
  6. Step 6: Final answer
    x = 7,155.37

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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.