Home / 11,311.39-16,967.09-3,520.21

Finding the Fourth Proportional to 11,311.39, 16,967.09 and 3,520.21

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Solution

The fourth proportional to 11,311.39, 16,967.09 and 3,520.21 is: 5,280.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311.39 : 16,967.09 = 3,520.21 : x
  2. Step 2: Convert to fraction form
    11,311.39/16,967.09 = 3,520.21/x
  3. Step 3: Cross multiply
    11,311.39x = 16,967.09 × 3,520.21
  4. Step 4: Simplify right side
    11,311.39x = 59,727,617.45
  5. Step 5: Solve for x
    x = 59,727,617.45/11,311.39
  6. Step 6: Final answer
    x = 5,280.31

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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.