Home / 11,713.26-16,137.18-8,170.32

Finding the Fourth Proportional to 11,713.26, 16,137.18 and 8,170.32

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Solution

The fourth proportional to 11,713.26, 16,137.18 and 8,170.32 is: 11,256.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,713.26 : 16,137.18 = 8,170.32 : x
  2. Step 2: Convert to fraction form
    11,713.26/16,137.18 = 8,170.32/x
  3. Step 3: Cross multiply
    11,713.26x = 16,137.18 × 8,170.32
  4. Step 4: Simplify right side
    11,713.26x = 131,845,924.50
  5. Step 5: Solve for x
    x = 131,845,924.50/11,713.26
  6. Step 6: Final answer
    x = 11,256.13

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Double scale
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Similar ratio
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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.