Home / 10,330.50-15,496.29-3,405

Finding the Fourth Proportional to 10,330.50, 15,496.29 and 3,405

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Solution

The fourth proportional to 10,330.50, 15,496.29 and 3,405 is: 5,107.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,330.50 : 15,496.29 = 3,405 : x
  2. Step 2: Convert to fraction form
    10,330.50/15,496.29 = 3,405/x
  3. Step 3: Cross multiply
    10,330.50x = 15,496.29 × 3,405
  4. Step 4: Simplify right side
    10,330.50x = 52,764,867.45
  5. Step 5: Solve for x
    x = 52,764,867.45/10,330.50
  6. Step 6: Final answer
    x = 5,107.68

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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.