Home / 11,209.23-16,809.91-3,309.64

Finding the Fourth Proportional to 11,209.23, 16,809.91 and 3,309.64

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Solution

The fourth proportional to 11,209.23, 16,809.91 and 3,309.64 is: 4,963.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,209.23 : 16,809.91 = 3,309.64 : x
  2. Step 2: Convert to fraction form
    11,209.23/16,809.91 = 3,309.64/x
  3. Step 3: Cross multiply
    11,209.23x = 16,809.91 × 3,309.64
  4. Step 4: Simplify right side
    11,209.23x = 55,634,700.23
  5. Step 5: Solve for x
    x = 55,634,700.23/11,209.23
  6. Step 6: Final answer
    x = 4,963.29

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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.