Home / 12,286.89-18,430.32-3,052.89

Finding the Fourth Proportional to 12,286.89, 18,430.32 and 3,052.89

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Solution

The fourth proportional to 12,286.89, 18,430.32 and 3,052.89 is: 4,579.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286.89 : 18,430.32 = 3,052.89 : x
  2. Step 2: Convert to fraction form
    12,286.89/18,430.32 = 3,052.89/x
  3. Step 3: Cross multiply
    12,286.89x = 18,430.32 × 3,052.89
  4. Step 4: Simplify right side
    12,286.89x = 56,265,739.62
  5. Step 5: Solve for x
    x = 56,265,739.62/12,286.89
  6. Step 6: Final answer
    x = 4,579.33

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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.