Home / 11,311.99-16,966.09-3,520.20

Finding the Fourth Proportional to 11,311.99, 16,966.09 and 3,520.20

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Solution

The fourth proportional to 11,311.99, 16,966.09 and 3,520.20 is: 5,279.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311.99 : 16,966.09 = 3,520.20 : x
  2. Step 2: Convert to fraction form
    11,311.99/16,966.09 = 3,520.20/x
  3. Step 3: Cross multiply
    11,311.99x = 16,966.09 × 3,520.20
  4. Step 4: Simplify right side
    11,311.99x = 59,724,030.02
  5. Step 5: Solve for x
    x = 59,724,030.02/11,311.99
  6. Step 6: Final answer
    x = 5,279.71

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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.