Home / 10,341.72-15,512.20-3,321.56

Finding the Fourth Proportional to 10,341.72, 15,512.20 and 3,321.56

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Solution

The fourth proportional to 10,341.72, 15,512.20 and 3,321.56 is: 4,982.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,341.72 : 15,512.20 = 3,321.56 : x
  2. Step 2: Convert to fraction form
    10,341.72/15,512.20 = 3,321.56/x
  3. Step 3: Cross multiply
    10,341.72x = 15,512.20 × 3,321.56
  4. Step 4: Simplify right side
    10,341.72x = 51,524,703.03
  5. Step 5: Solve for x
    x = 51,524,703.03/10,341.72
  6. Step 6: Final answer
    x = 4,982.22

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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.