Home / 10,620.34-15,930.78-3,694.84

Finding the Fourth Proportional to 10,620.34, 15,930.78 and 3,694.84

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Solution

The fourth proportional to 10,620.34, 15,930.78 and 3,694.84 is: 5,542.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.34 : 15,930.78 = 3,694.84 : x
  2. Step 2: Convert to fraction form
    10,620.34/15,930.78 = 3,694.84/x
  3. Step 3: Cross multiply
    10,620.34x = 15,930.78 × 3,694.84
  4. Step 4: Simplify right side
    10,620.34x = 58,861,683.18
  5. Step 5: Solve for x
    x = 58,861,683.18/10,620.34
  6. Step 6: Final answer
    x = 5,542.35

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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.