Home / 11,209.12-16,813.67-3,818.88

Finding the Fourth Proportional to 11,209.12, 16,813.67 and 3,818.88

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Solution

The fourth proportional to 11,209.12, 16,813.67 and 3,818.88 is: 5,728.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,209.12 : 16,813.67 = 3,818.88 : x
  2. Step 2: Convert to fraction form
    11,209.12/16,813.67 = 3,818.88/x
  3. Step 3: Cross multiply
    11,209.12x = 16,813.67 × 3,818.88
  4. Step 4: Simplify right side
    11,209.12x = 64,209,388.09
  5. Step 5: Solve for x
    x = 64,209,388.09/11,209.12
  6. Step 6: Final answer
    x = 5,728.32

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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.