Home / 7,964.51-11,942.65-3,578.21

Finding the Fourth Proportional to 7,964.51, 11,942.65 and 3,578.21

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Solution

The fourth proportional to 7,964.51, 11,942.65 and 3,578.21 is: 5,365.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,964.51 : 11,942.65 = 3,578.21 : x
  2. Step 2: Convert to fraction form
    7,964.51/11,942.65 = 3,578.21/x
  3. Step 3: Cross multiply
    7,964.51x = 11,942.65 × 3,578.21
  4. Step 4: Simplify right side
    7,964.51x = 42,733,309.66
  5. Step 5: Solve for x
    x = 42,733,309.66/7,964.51
  6. Step 6: Final answer
    x = 5,365.47

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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.