Home / 14,622.12-20,185.20-11,997.72

Finding the Fourth Proportional to 14,622.12, 20,185.20 and 11,997.72

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Solution

The fourth proportional to 14,622.12, 20,185.20 and 11,997.72 is: 16,562.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,622.12 : 20,185.20 = 11,997.72 : x
  2. Step 2: Convert to fraction form
    14,622.12/20,185.20 = 11,997.72/x
  3. Step 3: Cross multiply
    14,622.12x = 20,185.20 × 11,997.72
  4. Step 4: Simplify right side
    14,622.12x = 242,176,377.74
  5. Step 5: Solve for x
    x = 242,176,377.74/14,622.12
  6. Step 6: Final answer
    x = 16,562.33

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Half scale
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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.