Home / 11,280.20-16,922.10-3,885.50

Finding the Fourth Proportional to 11,280.20, 16,922.10 and 3,885.50

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Solution

The fourth proportional to 11,280.20, 16,922.10 and 3,885.50 is: 5,828.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,280.20 : 16,922.10 = 3,885.50 : x
  2. Step 2: Convert to fraction form
    11,280.20/16,922.10 = 3,885.50/x
  3. Step 3: Cross multiply
    11,280.20x = 16,922.10 × 3,885.50
  4. Step 4: Simplify right side
    11,280.20x = 65,750,819.55
  5. Step 5: Solve for x
    x = 65,750,819.55/11,280.20
  6. Step 6: Final answer
    x = 5,828.87

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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.