Home / 8,154.28-12,230.34-2,311.30

Finding the Fourth Proportional to 8,154.28, 12,230.34 and 2,311.30

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Solution

The fourth proportional to 8,154.28, 12,230.34 and 2,311.30 is: 3,466.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,154.28 : 12,230.34 = 2,311.30 : x
  2. Step 2: Convert to fraction form
    8,154.28/12,230.34 = 2,311.30/x
  3. Step 3: Cross multiply
    8,154.28x = 12,230.34 × 2,311.30
  4. Step 4: Simplify right side
    8,154.28x = 28,267,984.84
  5. Step 5: Solve for x
    x = 28,267,984.84/8,154.28
  6. Step 6: Final answer
    x = 3,466.64

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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.