Home / 12,691.11-19,036.22-3,331.06

Finding the Fourth Proportional to 12,691.11, 19,036.22 and 3,331.06

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Solution

The fourth proportional to 12,691.11, 19,036.22 and 3,331.06 is: 4,996.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,691.11 : 19,036.22 = 3,331.06 : x
  2. Step 2: Convert to fraction form
    12,691.11/19,036.22 = 3,331.06/x
  3. Step 3: Cross multiply
    12,691.11x = 19,036.22 × 3,331.06
  4. Step 4: Simplify right side
    12,691.11x = 63,410,790.99
  5. Step 5: Solve for x
    x = 63,410,790.99/12,691.11
  6. Step 6: Final answer
    x = 4,996.47

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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.