Home / 11,977.88-17,967.12-4,186.69

Finding the Fourth Proportional to 11,977.88, 17,967.12 and 4,186.69

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Solution

The fourth proportional to 11,977.88, 17,967.12 and 4,186.69 is: 6,280.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.88 : 17,967.12 = 4,186.69 : x
  2. Step 2: Convert to fraction form
    11,977.88/17,967.12 = 4,186.69/x
  3. Step 3: Cross multiply
    11,977.88x = 17,967.12 × 4,186.69
  4. Step 4: Simplify right side
    11,977.88x = 75,222,701.01
  5. Step 5: Solve for x
    x = 75,222,701.01/11,977.88
  6. Step 6: Final answer
    x = 6,280.14

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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.