Home / 12,635.34-18,949.77-5,241.90

Finding the Fourth Proportional to 12,635.34, 18,949.77 and 5,241.90

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Solution

The fourth proportional to 12,635.34, 18,949.77 and 5,241.90 is: 7,861.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,635.34 : 18,949.77 = 5,241.90 : x
  2. Step 2: Convert to fraction form
    12,635.34/18,949.77 = 5,241.90/x
  3. Step 3: Cross multiply
    12,635.34x = 18,949.77 × 5,241.90
  4. Step 4: Simplify right side
    12,635.34x = 99,332,799.36
  5. Step 5: Solve for x
    x = 99,332,799.36/12,635.34
  6. Step 6: Final answer
    x = 7,861.51

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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.