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Finding the Fourth Proportional to 12,468.87, 18,703.26 and 3,234.87

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Solution

The fourth proportional to 12,468.87, 18,703.26 and 3,234.87 is: 4,852.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,468.87 : 18,703.26 = 3,234.87 : x
  2. Step 2: Convert to fraction form
    12,468.87/18,703.26 = 3,234.87/x
  3. Step 3: Cross multiply
    12,468.87x = 18,703.26 × 3,234.87
  4. Step 4: Simplify right side
    12,468.87x = 60,502,614.68
  5. Step 5: Solve for x
    x = 60,502,614.68/12,468.87
  6. Step 6: Final answer
    x = 4,852.29

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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.