Home / 12,072.88-18,110.13-3,307.06

Finding the Fourth Proportional to 12,072.88, 18,110.13 and 3,307.06

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Solution

The fourth proportional to 12,072.88, 18,110.13 and 3,307.06 is: 4,960.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072.88 : 18,110.13 = 3,307.06 : x
  2. Step 2: Convert to fraction form
    12,072.88/18,110.13 = 3,307.06/x
  3. Step 3: Cross multiply
    12,072.88x = 18,110.13 × 3,307.06
  4. Step 4: Simplify right side
    12,072.88x = 59,891,286.52
  5. Step 5: Solve for x
    x = 59,891,286.52/12,072.88
  6. Step 6: Final answer
    x = 4,960.81

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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.