Home / 10,356.94-15,533.78-3,431.44

Finding the Fourth Proportional to 10,356.94, 15,533.78 and 3,431.44

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Solution

The fourth proportional to 10,356.94, 15,533.78 and 3,431.44 is: 5,146.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,356.94 : 15,533.78 = 3,431.44 : x
  2. Step 2: Convert to fraction form
    10,356.94/15,533.78 = 3,431.44/x
  3. Step 3: Cross multiply
    10,356.94x = 15,533.78 × 3,431.44
  4. Step 4: Simplify right side
    10,356.94x = 53,303,234.04
  5. Step 5: Solve for x
    x = 53,303,234.04/10,356.94
  6. Step 6: Final answer
    x = 5,146.62

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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.