Home / 8,742.58-13,119.33-3,548.45

Finding the Fourth Proportional to 8,742.58, 13,119.33 and 3,548.45

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Solution

The fourth proportional to 8,742.58, 13,119.33 and 3,548.45 is: 5,324.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.58 : 13,119.33 = 3,548.45 : x
  2. Step 2: Convert to fraction form
    8,742.58/13,119.33 = 3,548.45/x
  3. Step 3: Cross multiply
    8,742.58x = 13,119.33 × 3,548.45
  4. Step 4: Simplify right side
    8,742.58x = 46,553,286.54
  5. Step 5: Solve for x
    x = 46,553,286.54/8,742.58
  6. Step 6: Final answer
    x = 5,324.89

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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.