Home / 12,072.20-18,108.30-3,307.10

Finding the Fourth Proportional to 12,072.20, 18,108.30 and 3,307.10

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Solution

The fourth proportional to 12,072.20, 18,108.30 and 3,307.10 is: 4,960.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072.20 : 18,108.30 = 3,307.10 : x
  2. Step 2: Convert to fraction form
    12,072.20/18,108.30 = 3,307.10/x
  3. Step 3: Cross multiply
    12,072.20x = 18,108.30 × 3,307.10
  4. Step 4: Simplify right side
    12,072.20x = 59,885,958.93
  5. Step 5: Solve for x
    x = 59,885,958.93/12,072.20
  6. Step 6: Final answer
    x = 4,960.65

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Similar ratio
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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.