Home / 11,140.72-16,709.28-4,124.04

Finding the Fourth Proportional to 11,140.72, 16,709.28 and 4,124.04

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Solution

The fourth proportional to 11,140.72, 16,709.28 and 4,124.04 is: 6,185.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.72 : 16,709.28 = 4,124.04 : x
  2. Step 2: Convert to fraction form
    11,140.72/16,709.28 = 4,124.04/x
  3. Step 3: Cross multiply
    11,140.72x = 16,709.28 × 4,124.04
  4. Step 4: Simplify right side
    11,140.72x = 68,909,739.09
  5. Step 5: Solve for x
    x = 68,909,739.09/11,140.72
  6. Step 6: Final answer
    x = 6,185.39

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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.