Home / 8,173.12-11,278.68-4,447.12

Finding the Fourth Proportional to 8,173.12, 11,278.68 and 4,447.12

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Solution

The fourth proportional to 8,173.12, 11,278.68 and 4,447.12 is: 6,136.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,173.12 : 11,278.68 = 4,447.12 : x
  2. Step 2: Convert to fraction form
    8,173.12/11,278.68 = 4,447.12/x
  3. Step 3: Cross multiply
    8,173.12x = 11,278.68 × 4,447.12
  4. Step 4: Simplify right side
    8,173.12x = 50,157,643.40
  5. Step 5: Solve for x
    x = 50,157,643.40/8,173.12
  6. Step 6: Final answer
    x = 6,136.90

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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.