Home / 11,276.24-16,914.35-7,122.56

Finding the Fourth Proportional to 11,276.24, 16,914.35 and 7,122.56

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Solution

The fourth proportional to 11,276.24, 16,914.35 and 7,122.56 is: 10,683.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,276.24 : 16,914.35 = 7,122.56 : x
  2. Step 2: Convert to fraction form
    11,276.24/16,914.35 = 7,122.56/x
  3. Step 3: Cross multiply
    11,276.24x = 16,914.35 × 7,122.56
  4. Step 4: Simplify right side
    11,276.24x = 120,473,352.55
  5. Step 5: Solve for x
    x = 120,473,352.55/11,276.24
  6. Step 6: Final answer
    x = 10,683.83

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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.