Home / 11,972.76-17,959.15-3,764.76

Finding the Fourth Proportional to 11,972.76, 17,959.15 and 3,764.76

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Solution

The fourth proportional to 11,972.76, 17,959.15 and 3,764.76 is: 5,647.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.76 : 17,959.15 = 3,764.76 : x
  2. Step 2: Convert to fraction form
    11,972.76/17,959.15 = 3,764.76/x
  3. Step 3: Cross multiply
    11,972.76x = 17,959.15 × 3,764.76
  4. Step 4: Simplify right side
    11,972.76x = 67,611,889.55
  5. Step 5: Solve for x
    x = 67,611,889.55/11,972.76
  6. Step 6: Final answer
    x = 5,647.14

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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.