Home / 11,438.72-17,159.94-3,539.40

Finding the Fourth Proportional to 11,438.72, 17,159.94 and 3,539.40

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Solution

The fourth proportional to 11,438.72, 17,159.94 and 3,539.40 is: 5,309.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,438.72 : 17,159.94 = 3,539.40 : x
  2. Step 2: Convert to fraction form
    11,438.72/17,159.94 = 3,539.40/x
  3. Step 3: Cross multiply
    11,438.72x = 17,159.94 × 3,539.40
  4. Step 4: Simplify right side
    11,438.72x = 60,735,891.64
  5. Step 5: Solve for x
    x = 60,735,891.64/11,438.72
  6. Step 6: Final answer
    x = 5,309.68

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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.