Home / 11,381.58-17,074.40-3,986.28

Finding the Fourth Proportional to 11,381.58, 17,074.40 and 3,986.28

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Solution

The fourth proportional to 11,381.58, 17,074.40 and 3,986.28 is: 5,980.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,381.58 : 17,074.40 = 3,986.28 : x
  2. Step 2: Convert to fraction form
    11,381.58/17,074.40 = 3,986.28/x
  3. Step 3: Cross multiply
    11,381.58x = 17,074.40 × 3,986.28
  4. Step 4: Simplify right side
    11,381.58x = 68,063,319.30
  5. Step 5: Solve for x
    x = 68,063,319.30/11,381.58
  6. Step 6: Final answer
    x = 5,980.13

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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.