Home / 10,433.21-15,640.54-3,857.85

Finding the Fourth Proportional to 10,433.21, 15,640.54 and 3,857.85

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Solution

The fourth proportional to 10,433.21, 15,640.54 and 3,857.85 is: 5,783.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,433.21 : 15,640.54 = 3,857.85 : x
  2. Step 2: Convert to fraction form
    10,433.21/15,640.54 = 3,857.85/x
  3. Step 3: Cross multiply
    10,433.21x = 15,640.54 × 3,857.85
  4. Step 4: Simplify right side
    10,433.21x = 60,338,913.28
  5. Step 5: Solve for x
    x = 60,338,913.28/10,433.21
  6. Step 6: Final answer
    x = 5,783.35

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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.