Home / 12,031.09-18,042.13-4,131.36

Finding the Fourth Proportional to 12,031.09, 18,042.13 and 4,131.36

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Solution

The fourth proportional to 12,031.09, 18,042.13 and 4,131.36 is: 6,195.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,031.09 : 18,042.13 = 4,131.36 : x
  2. Step 2: Convert to fraction form
    12,031.09/18,042.13 = 4,131.36/x
  3. Step 3: Cross multiply
    12,031.09x = 18,042.13 × 4,131.36
  4. Step 4: Simplify right side
    12,031.09x = 74,538,534.20
  5. Step 5: Solve for x
    x = 74,538,534.20/12,031.09
  6. Step 6: Final answer
    x = 6,195.49

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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.