Home / 10,790.30-16,181.35-4,215.63

Finding the Fourth Proportional to 10,790.30, 16,181.35 and 4,215.63

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Solution

The fourth proportional to 10,790.30, 16,181.35 and 4,215.63 is: 6,321.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,790.30 : 16,181.35 = 4,215.63 : x
  2. Step 2: Convert to fraction form
    10,790.30/16,181.35 = 4,215.63/x
  3. Step 3: Cross multiply
    10,790.30x = 16,181.35 × 4,215.63
  4. Step 4: Simplify right side
    10,790.30x = 68,214,584.50
  5. Step 5: Solve for x
    x = 68,214,584.50/10,790.30
  6. Step 6: Final answer
    x = 6,321.84

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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.