Home / 11,940.64-17,911.02-3,176.20

Finding the Fourth Proportional to 11,940.64, 17,911.02 and 3,176.20

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Solution

The fourth proportional to 11,940.64, 17,911.02 and 3,176.20 is: 4,764.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,940.64 : 17,911.02 = 3,176.20 : x
  2. Step 2: Convert to fraction form
    11,940.64/17,911.02 = 3,176.20/x
  3. Step 3: Cross multiply
    11,940.64x = 17,911.02 × 3,176.20
  4. Step 4: Simplify right side
    11,940.64x = 56,888,981.72
  5. Step 5: Solve for x
    x = 56,888,981.72/11,940.64
  6. Step 6: Final answer
    x = 4,764.32

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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.