Home / 11,987.58-17,967.22-5,406.06

Finding the Fourth Proportional to 11,987.58, 17,967.22 and 5,406.06

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Solution

The fourth proportional to 11,987.58, 17,967.22 and 5,406.06 is: 8,102.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.58 : 17,967.22 = 5,406.06 : x
  2. Step 2: Convert to fraction form
    11,987.58/17,967.22 = 5,406.06/x
  3. Step 3: Cross multiply
    11,987.58x = 17,967.22 × 5,406.06
  4. Step 4: Simplify right side
    11,987.58x = 97,131,869.35
  5. Step 5: Solve for x
    x = 97,131,869.35/11,987.58
  6. Step 6: Final answer
    x = 8,102.71

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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.