Home / 12,179.57-18,269.35-4,388.18

Finding the Fourth Proportional to 12,179.57, 18,269.35 and 4,388.18

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Solution

The fourth proportional to 12,179.57, 18,269.35 and 4,388.18 is: 6,582.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,179.57 : 18,269.35 = 4,388.18 : x
  2. Step 2: Convert to fraction form
    12,179.57/18,269.35 = 4,388.18/x
  3. Step 3: Cross multiply
    12,179.57x = 18,269.35 × 4,388.18
  4. Step 4: Simplify right side
    12,179.57x = 80,169,093.97
  5. Step 5: Solve for x
    x = 80,169,093.97/12,179.57
  6. Step 6: Final answer
    x = 6,582.26

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.