Home / 12,256.16-16,908.09-8,168.90

Finding the Fourth Proportional to 12,256.16, 16,908.09 and 8,168.90

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Solution

The fourth proportional to 12,256.16, 16,908.09 and 8,168.90 is: 11,269.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,256.16 : 16,908.09 = 8,168.90 : x
  2. Step 2: Convert to fraction form
    12,256.16/16,908.09 = 8,168.90/x
  3. Step 3: Cross multiply
    12,256.16x = 16,908.09 × 8,168.90
  4. Step 4: Simplify right side
    12,256.16x = 138,120,496.40
  5. Step 5: Solve for x
    x = 138,120,496.40/12,256.16
  6. Step 6: Final answer
    x = 11,269.48

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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.