Home / 10,120.82-15,184.26-3,880.98

Finding the Fourth Proportional to 10,120.82, 15,184.26 and 3,880.98

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Solution

The fourth proportional to 10,120.82, 15,184.26 and 3,880.98 is: 5,822.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.82 : 15,184.26 = 3,880.98 : x
  2. Step 2: Convert to fraction form
    10,120.82/15,184.26 = 3,880.98/x
  3. Step 3: Cross multiply
    10,120.82x = 15,184.26 × 3,880.98
  4. Step 4: Simplify right side
    10,120.82x = 58,929,809.37
  5. Step 5: Solve for x
    x = 58,929,809.37/10,120.82
  6. Step 6: Final answer
    x = 5,822.63

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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.