Home / 12,020.39-18,031.22-3,706.12

Finding the Fourth Proportional to 12,020.39, 18,031.22 and 3,706.12

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Solution

The fourth proportional to 12,020.39, 18,031.22 and 3,706.12 is: 5,559.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,020.39 : 18,031.22 = 3,706.12 : x
  2. Step 2: Convert to fraction form
    12,020.39/18,031.22 = 3,706.12/x
  3. Step 3: Cross multiply
    12,020.39x = 18,031.22 × 3,706.12
  4. Step 4: Simplify right side
    12,020.39x = 66,825,865.07
  5. Step 5: Solve for x
    x = 66,825,865.07/12,020.39
  6. Step 6: Final answer
    x = 5,559.38

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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.