Home / 8,219.27-12,329.58-2,672.49

Finding the Fourth Proportional to 8,219.27, 12,329.58 and 2,672.49

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Solution

The fourth proportional to 8,219.27, 12,329.58 and 2,672.49 is: 4,008.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219.27 : 12,329.58 = 2,672.49 : x
  2. Step 2: Convert to fraction form
    8,219.27/12,329.58 = 2,672.49/x
  3. Step 3: Cross multiply
    8,219.27x = 12,329.58 × 2,672.49
  4. Step 4: Simplify right side
    8,219.27x = 32,950,735.51
  5. Step 5: Solve for x
    x = 32,950,735.51/8,219.27
  6. Step 6: Final answer
    x = 4,008.96

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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.