Home / 18,290.45-27,433.67-12,405.14

Finding the Fourth Proportional to 18,290.45, 27,433.67 and 12,405.14

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Solution

The fourth proportional to 18,290.45, 27,433.67 and 12,405.14 is: 18,606.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,290.45 : 27,433.67 = 12,405.14 : x
  2. Step 2: Convert to fraction form
    18,290.45/27,433.67 = 12,405.14/x
  3. Step 3: Cross multiply
    18,290.45x = 27,433.67 × 12,405.14
  4. Step 4: Simplify right side
    18,290.45x = 340,318,317.87
  5. Step 5: Solve for x
    x = 340,318,317.87/18,290.45
  6. Step 6: Final answer
    x = 18,606.34

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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.