Home / 10,865.46-16,299.40-3,938.34

Finding the Fourth Proportional to 10,865.46, 16,299.40 and 3,938.34

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Solution

The fourth proportional to 10,865.46, 16,299.40 and 3,938.34 is: 5,907.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,865.46 : 16,299.40 = 3,938.34 : x
  2. Step 2: Convert to fraction form
    10,865.46/16,299.40 = 3,938.34/x
  3. Step 3: Cross multiply
    10,865.46x = 16,299.40 × 3,938.34
  4. Step 4: Simplify right side
    10,865.46x = 64,192,579.00
  5. Step 5: Solve for x
    x = 64,192,579.00/10,865.46
  6. Step 6: Final answer
    x = 5,907.95

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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.