Home / 12,291.93-18,438.44-3,971.93

Finding the Fourth Proportional to 12,291.93, 18,438.44 and 3,971.93

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Solution

The fourth proportional to 12,291.93, 18,438.44 and 3,971.93 is: 5,958.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,291.93 : 18,438.44 = 3,971.93 : x
  2. Step 2: Convert to fraction form
    12,291.93/18,438.44 = 3,971.93/x
  3. Step 3: Cross multiply
    12,291.93x = 18,438.44 × 3,971.93
  4. Step 4: Simplify right side
    12,291.93x = 73,236,080.94
  5. Step 5: Solve for x
    x = 73,236,080.94/12,291.93
  6. Step 6: Final answer
    x = 5,958.06

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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.