Home / 11,173.80-16,739.64-9,336.72

Finding the Fourth Proportional to 11,173.80, 16,739.64 and 9,336.72

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Solution

The fourth proportional to 11,173.80, 16,739.64 and 9,336.72 is: 13,987.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,173.80 : 16,739.64 = 9,336.72 : x
  2. Step 2: Convert to fraction form
    11,173.80/16,739.64 = 9,336.72/x
  3. Step 3: Cross multiply
    11,173.80x = 16,739.64 × 9,336.72
  4. Step 4: Simplify right side
    11,173.80x = 156,293,331.58
  5. Step 5: Solve for x
    x = 156,293,331.58/11,173.80
  6. Step 6: Final answer
    x = 13,987.48

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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.