Home / 12,444.40-18,668.40-3,679.36

Finding the Fourth Proportional to 12,444.40, 18,668.40 and 3,679.36

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Solution

The fourth proportional to 12,444.40, 18,668.40 and 3,679.36 is: 5,519.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,444.40 : 18,668.40 = 3,679.36 : x
  2. Step 2: Convert to fraction form
    12,444.40/18,668.40 = 3,679.36/x
  3. Step 3: Cross multiply
    12,444.40x = 18,668.40 × 3,679.36
  4. Step 4: Simplify right side
    12,444.40x = 68,687,764.22
  5. Step 5: Solve for x
    x = 68,687,764.22/12,444.40
  6. Step 6: Final answer
    x = 5,519.57

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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.