Home / 12,222.75-18,343.35-8,944.29

Finding the Fourth Proportional to 12,222.75, 18,343.35 and 8,944.29

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Solution

The fourth proportional to 12,222.75, 18,343.35 and 8,944.29 is: 13,423.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.75 : 18,343.35 = 8,944.29 : x
  2. Step 2: Convert to fraction form
    12,222.75/18,343.35 = 8,944.29/x
  3. Step 3: Cross multiply
    12,222.75x = 18,343.35 × 8,944.29
  4. Step 4: Simplify right side
    12,222.75x = 164,068,241.97
  5. Step 5: Solve for x
    x = 164,068,241.97/12,222.75
  6. Step 6: Final answer
    x = 13,423.19

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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.