Home / 10,256.20-15,383.68-3,680.62

Finding the Fourth Proportional to 10,256.20, 15,383.68 and 3,680.62

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Solution

The fourth proportional to 10,256.20, 15,383.68 and 3,680.62 is: 5,520.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,256.20 : 15,383.68 = 3,680.62 : x
  2. Step 2: Convert to fraction form
    10,256.20/15,383.68 = 3,680.62/x
  3. Step 3: Cross multiply
    10,256.20x = 15,383.68 × 3,680.62
  4. Step 4: Simplify right side
    10,256.20x = 56,621,480.28
  5. Step 5: Solve for x
    x = 56,621,480.28/10,256.20
  6. Step 6: Final answer
    x = 5,520.71

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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.