Home / 10,208.78-15,305.93-3,963.53

Finding the Fourth Proportional to 10,208.78, 15,305.93 and 3,963.53

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Solution

The fourth proportional to 10,208.78, 15,305.93 and 3,963.53 is: 5,942.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,208.78 : 15,305.93 = 3,963.53 : x
  2. Step 2: Convert to fraction form
    10,208.78/15,305.93 = 3,963.53/x
  3. Step 3: Cross multiply
    10,208.78x = 15,305.93 × 3,963.53
  4. Step 4: Simplify right side
    10,208.78x = 60,665,416.39
  5. Step 5: Solve for x
    x = 60,665,416.39/10,208.78
  6. Step 6: Final answer
    x = 5,942.47

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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.