Home / 7,563.45-11,341.72-3,178.51

Finding the Fourth Proportional to 7,563.45, 11,341.72 and 3,178.51

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Solution

The fourth proportional to 7,563.45, 11,341.72 and 3,178.51 is: 4,766.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,563.45 : 11,341.72 = 3,178.51 : x
  2. Step 2: Convert to fraction form
    7,563.45/11,341.72 = 3,178.51/x
  3. Step 3: Cross multiply
    7,563.45x = 11,341.72 × 3,178.51
  4. Step 4: Simplify right side
    7,563.45x = 36,049,770.44
  5. Step 5: Solve for x
    x = 36,049,770.44/7,563.45
  6. Step 6: Final answer
    x = 4,766.31

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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.