Home / 10,115.82-15,176.14-3,190.32

Finding the Fourth Proportional to 10,115.82, 15,176.14 and 3,190.32

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Solution

The fourth proportional to 10,115.82, 15,176.14 and 3,190.32 is: 4,786.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115.82 : 15,176.14 = 3,190.32 : x
  2. Step 2: Convert to fraction form
    10,115.82/15,176.14 = 3,190.32/x
  3. Step 3: Cross multiply
    10,115.82x = 15,176.14 × 3,190.32
  4. Step 4: Simplify right side
    10,115.82x = 48,416,742.96
  5. Step 5: Solve for x
    x = 48,416,742.96/10,115.82
  6. Step 6: Final answer
    x = 4,786.24

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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.