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Finding the Fourth Proportional to 12,471.62, 18,707.39 and 3,237.62

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Solution

The fourth proportional to 12,471.62, 18,707.39 and 3,237.62 is: 4,856.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,471.62 : 18,707.39 = 3,237.62 : x
  2. Step 2: Convert to fraction form
    12,471.62/18,707.39 = 3,237.62/x
  3. Step 3: Cross multiply
    12,471.62x = 18,707.39 × 3,237.62
  4. Step 4: Simplify right side
    12,471.62x = 60,567,403.82
  5. Step 5: Solve for x
    x = 60,567,403.82/12,471.62
  6. Step 6: Final answer
    x = 4,856.42

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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.