Home / 11,880.66-17,819.62-3,116.28

Finding the Fourth Proportional to 11,880.66, 17,819.62 and 3,116.28

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Solution

The fourth proportional to 11,880.66, 17,819.62 and 3,116.28 is: 4,674.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,880.66 : 17,819.62 = 3,116.28 : x
  2. Step 2: Convert to fraction form
    11,880.66/17,819.62 = 3,116.28/x
  3. Step 3: Cross multiply
    11,880.66x = 17,819.62 × 3,116.28
  4. Step 4: Simplify right side
    11,880.66x = 55,530,925.41
  5. Step 5: Solve for x
    x = 55,530,925.41/11,880.66
  6. Step 6: Final answer
    x = 4,674.06

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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.