Home / 8,426.94-12,638.97-2,269.50

Finding the Fourth Proportional to 8,426.94, 12,638.97 and 2,269.50

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Solution

The fourth proportional to 8,426.94, 12,638.97 and 2,269.50 is: 3,403.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,426.94 : 12,638.97 = 2,269.50 : x
  2. Step 2: Convert to fraction form
    8,426.94/12,638.97 = 2,269.50/x
  3. Step 3: Cross multiply
    8,426.94x = 12,638.97 × 2,269.50
  4. Step 4: Simplify right side
    8,426.94x = 28,684,142.42
  5. Step 5: Solve for x
    x = 28,684,142.42/8,426.94
  6. Step 6: Final answer
    x = 3,403.86

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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.