Home / 10,106.96-15,162.84-3,181.44

Finding the Fourth Proportional to 10,106.96, 15,162.84 and 3,181.44

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Solution

The fourth proportional to 10,106.96, 15,162.84 and 3,181.44 is: 4,772.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,106.96 : 15,162.84 = 3,181.44 : x
  2. Step 2: Convert to fraction form
    10,106.96/15,162.84 = 3,181.44/x
  3. Step 3: Cross multiply
    10,106.96x = 15,162.84 × 3,181.44
  4. Step 4: Simplify right side
    10,106.96x = 48,239,665.69
  5. Step 5: Solve for x
    x = 48,239,665.69/10,106.96
  6. Step 6: Final answer
    x = 4,772.92

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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.