Home / 11,940.20-17,906.55-4,340.51

Finding the Fourth Proportional to 11,940.20, 17,906.55 and 4,340.51

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Solution

The fourth proportional to 11,940.20, 17,906.55 and 4,340.51 is: 6,509.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,940.20 : 17,906.55 = 4,340.51 : x
  2. Step 2: Convert to fraction form
    11,940.20/17,906.55 = 4,340.51/x
  3. Step 3: Cross multiply
    11,940.20x = 17,906.55 × 4,340.51
  4. Step 4: Simplify right side
    11,940.20x = 77,723,559.34
  5. Step 5: Solve for x
    x = 77,723,559.34/11,940.20
  6. Step 6: Final answer
    x = 6,509.40

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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.