Home / 18,509.08-27,770.12-11,575.48

Finding the Fourth Proportional to 18,509.08, 27,770.12 and 11,575.48

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Solution

The fourth proportional to 18,509.08, 27,770.12 and 11,575.48 is: 17,367.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,509.08 : 27,770.12 = 11,575.48 : x
  2. Step 2: Convert to fraction form
    18,509.08/27,770.12 = 11,575.48/x
  3. Step 3: Cross multiply
    18,509.08x = 27,770.12 × 11,575.48
  4. Step 4: Simplify right side
    18,509.08x = 321,452,468.66
  5. Step 5: Solve for x
    x = 321,452,468.66/18,509.08
  6. Step 6: Final answer
    x = 17,367.29

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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.