Home / 12,172.70-18,251.75-4,383.34

Finding the Fourth Proportional to 12,172.70, 18,251.75 and 4,383.34

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Solution

The fourth proportional to 12,172.70, 18,251.75 and 4,383.34 is: 6,572.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172.70 : 18,251.75 = 4,383.34 : x
  2. Step 2: Convert to fraction form
    12,172.70/18,251.75 = 4,383.34/x
  3. Step 3: Cross multiply
    12,172.70x = 18,251.75 × 4,383.34
  4. Step 4: Simplify right side
    12,172.70x = 80,003,591.17
  5. Step 5: Solve for x
    x = 80,003,591.17/12,172.70
  6. Step 6: Final answer
    x = 6,572.38

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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.