Home / 11,747.10-17,620.65-11,115.30

Finding the Fourth Proportional to 11,747.10, 17,620.65 and 11,115.30

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Solution

The fourth proportional to 11,747.10, 17,620.65 and 11,115.30 is: 16,672.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,747.10 : 17,620.65 = 11,115.30 : x
  2. Step 2: Convert to fraction form
    11,747.10/17,620.65 = 11,115.30/x
  3. Step 3: Cross multiply
    11,747.10x = 17,620.65 × 11,115.30
  4. Step 4: Simplify right side
    11,747.10x = 195,858,810.95
  5. Step 5: Solve for x
    x = 195,858,810.95/11,747.10
  6. Step 6: Final answer
    x = 16,672.95

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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.