Home / 12,454.56-17,149.32-11,661.30

Finding the Fourth Proportional to 12,454.56, 17,149.32 and 11,661.30

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Solution

The fourth proportional to 12,454.56, 17,149.32 and 11,661.30 is: 16,057.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,454.56 : 17,149.32 = 11,661.30 : x
  2. Step 2: Convert to fraction form
    12,454.56/17,149.32 = 11,661.30/x
  3. Step 3: Cross multiply
    12,454.56x = 17,149.32 × 11,661.30
  4. Step 4: Simplify right side
    12,454.56x = 199,983,365.32
  5. Step 5: Solve for x
    x = 199,983,365.32/12,454.56
  6. Step 6: Final answer
    x = 16,057.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.