Home / 8,074.40-11,142.72-4,489.12

Finding the Fourth Proportional to 8,074.40, 11,142.72 and 4,489.12

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Solution

The fourth proportional to 8,074.40, 11,142.72 and 4,489.12 is: 6,195.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,074.40 : 11,142.72 = 4,489.12 : x
  2. Step 2: Convert to fraction form
    8,074.40/11,142.72 = 4,489.12/x
  3. Step 3: Cross multiply
    8,074.40x = 11,142.72 × 4,489.12
  4. Step 4: Simplify right side
    8,074.40x = 50,021,007.21
  5. Step 5: Solve for x
    x = 50,021,007.21/8,074.40
  6. Step 6: Final answer
    x = 6,195.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.