Home / 11,867.76-17,796.68-4,077.20

Finding the Fourth Proportional to 11,867.76, 17,796.68 and 4,077.20

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Solution

The fourth proportional to 11,867.76, 17,796.68 and 4,077.20 is: 6,114.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,867.76 : 17,796.68 = 4,077.20 : x
  2. Step 2: Convert to fraction form
    11,867.76/17,796.68 = 4,077.20/x
  3. Step 3: Cross multiply
    11,867.76x = 17,796.68 × 4,077.20
  4. Step 4: Simplify right side
    11,867.76x = 72,560,623.70
  5. Step 5: Solve for x
    x = 72,560,623.70/11,867.76
  6. Step 6: Final answer
    x = 6,114.10

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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.