Home / 10,256.72-15,388.68-3,331.20

Finding the Fourth Proportional to 10,256.72, 15,388.68 and 3,331.20

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Solution

The fourth proportional to 10,256.72, 15,388.68 and 3,331.20 is: 4,997.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,256.72 : 15,388.68 = 3,331.20 : x
  2. Step 2: Convert to fraction form
    10,256.72/15,388.68 = 3,331.20/x
  3. Step 3: Cross multiply
    10,256.72x = 15,388.68 × 3,331.20
  4. Step 4: Simplify right side
    10,256.72x = 51,262,770.82
  5. Step 5: Solve for x
    x = 51,262,770.82/10,256.72
  6. Step 6: Final answer
    x = 4,997.97

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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.