Home / 12,636.06-18,958.98-5,238.62

Finding the Fourth Proportional to 12,636.06, 18,958.98 and 5,238.62

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Solution

The fourth proportional to 12,636.06, 18,958.98 and 5,238.62 is: 7,859.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,636.06 : 18,958.98 = 5,238.62 : x
  2. Step 2: Convert to fraction form
    12,636.06/18,958.98 = 5,238.62/x
  3. Step 3: Cross multiply
    12,636.06x = 18,958.98 × 5,238.62
  4. Step 4: Simplify right side
    12,636.06x = 99,318,891.81
  5. Step 5: Solve for x
    x = 99,318,891.81/12,636.06
  6. Step 6: Final answer
    x = 7,859.96

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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.