Home / 10,205.52-15,310.71-3,965.70

Finding the Fourth Proportional to 10,205.52, 15,310.71 and 3,965.70

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Solution

The fourth proportional to 10,205.52, 15,310.71 and 3,965.70 is: 5,949.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,205.52 : 15,310.71 = 3,965.70 : x
  2. Step 2: Convert to fraction form
    10,205.52/15,310.71 = 3,965.70/x
  3. Step 3: Cross multiply
    10,205.52x = 15,310.71 × 3,965.70
  4. Step 4: Simplify right side
    10,205.52x = 60,717,682.65
  5. Step 5: Solve for x
    x = 60,717,682.65/10,205.52
  6. Step 6: Final answer
    x = 5,949.49

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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.