Home / 11,679.83-17,519.90-5,438.07

Finding the Fourth Proportional to 11,679.83, 17,519.90 and 5,438.07

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Solution

The fourth proportional to 11,679.83, 17,519.90 and 5,438.07 is: 8,157.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,679.83 : 17,519.90 = 5,438.07 : x
  2. Step 2: Convert to fraction form
    11,679.83/17,519.90 = 5,438.07/x
  3. Step 3: Cross multiply
    11,679.83x = 17,519.90 × 5,438.07
  4. Step 4: Simplify right side
    11,679.83x = 95,274,415.40
  5. Step 5: Solve for x
    x = 95,274,415.40/11,679.83
  6. Step 6: Final answer
    x = 8,157.18

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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.