Home / 10,519.39-15,774.46-3,940.96

Finding the Fourth Proportional to 10,519.39, 15,774.46 and 3,940.96

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Solution

The fourth proportional to 10,519.39, 15,774.46 and 3,940.96 is: 5,909.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,519.39 : 15,774.46 = 3,940.96 : x
  2. Step 2: Convert to fraction form
    10,519.39/15,774.46 = 3,940.96/x
  3. Step 3: Cross multiply
    10,519.39x = 15,774.46 × 3,940.96
  4. Step 4: Simplify right side
    10,519.39x = 62,166,515.88
  5. Step 5: Solve for x
    x = 62,166,515.88/10,519.39
  6. Step 6: Final answer
    x = 5,909.71

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1.5x scale

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.