Home / 12,351.89-18,546.29-12,167.36

Finding the Fourth Proportional to 12,351.89, 18,546.29 and 12,167.36

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Solution

The fourth proportional to 12,351.89, 18,546.29 and 12,167.36 is: 18,269.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,351.89 : 18,546.29 = 12,167.36 : x
  2. Step 2: Convert to fraction form
    12,351.89/18,546.29 = 12,167.36/x
  3. Step 3: Cross multiply
    12,351.89x = 18,546.29 × 12,167.36
  4. Step 4: Simplify right side
    12,351.89x = 225,659,487.25
  5. Step 5: Solve for x
    x = 225,659,487.25/12,351.89
  6. Step 6: Final answer
    x = 18,269.22

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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.