Home / 11,240.90-16,861.35-3,449.70

Finding the Fourth Proportional to 11,240.90, 16,861.35 and 3,449.70

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Solution

The fourth proportional to 11,240.90, 16,861.35 and 3,449.70 is: 5,174.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,240.90 : 16,861.35 = 3,449.70 : x
  2. Step 2: Convert to fraction form
    11,240.90/16,861.35 = 3,449.70/x
  3. Step 3: Cross multiply
    11,240.90x = 16,861.35 × 3,449.70
  4. Step 4: Simplify right side
    11,240.90x = 58,166,599.10
  5. Step 5: Solve for x
    x = 58,166,599.10/11,240.90
  6. Step 6: Final answer
    x = 5,174.55

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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.