Home / 10,219.96-15,331.42-3,645.56

Finding the Fourth Proportional to 10,219.96, 15,331.42 and 3,645.56

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Solution

The fourth proportional to 10,219.96, 15,331.42 and 3,645.56 is: 5,468.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,219.96 : 15,331.42 = 3,645.56 : x
  2. Step 2: Convert to fraction form
    10,219.96/15,331.42 = 3,645.56/x
  3. Step 3: Cross multiply
    10,219.96x = 15,331.42 × 3,645.56
  4. Step 4: Simplify right side
    10,219.96x = 55,891,611.50
  5. Step 5: Solve for x
    x = 55,891,611.50/10,219.96
  6. Step 6: Final answer
    x = 5,468.87

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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.