Home / 12,162.23-16,781.74-6,857.27

Finding the Fourth Proportional to 12,162.23, 16,781.74 and 6,857.27

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Solution

The fourth proportional to 12,162.23, 16,781.74 and 6,857.27 is: 9,461.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,162.23 : 16,781.74 = 6,857.27 : x
  2. Step 2: Convert to fraction form
    12,162.23/16,781.74 = 6,857.27/x
  3. Step 3: Cross multiply
    12,162.23x = 16,781.74 × 6,857.27
  4. Step 4: Simplify right side
    12,162.23x = 115,076,922.25
  5. Step 5: Solve for x
    x = 115,076,922.25/12,162.23
  6. Step 6: Final answer
    x = 9,461.83

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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.