Home / 11,647.20-16,074.24-7,173.57

Finding the Fourth Proportional to 11,647.20, 16,074.24 and 7,173.57

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Solution

The fourth proportional to 11,647.20, 16,074.24 and 7,173.57 is: 9,900.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,647.20 : 16,074.24 = 7,173.57 : x
  2. Step 2: Convert to fraction form
    11,647.20/16,074.24 = 7,173.57/x
  3. Step 3: Cross multiply
    11,647.20x = 16,074.24 × 7,173.57
  4. Step 4: Simplify right side
    11,647.20x = 115,309,685.84
  5. Step 5: Solve for x
    x = 115,309,685.84/11,647.20
  6. Step 6: Final answer
    x = 9,900.21

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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.