Home / 13,198.36-19,828.50-12,451.12

Finding the Fourth Proportional to 13,198.36, 19,828.50 and 12,451.12

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Solution

The fourth proportional to 13,198.36, 19,828.50 and 12,451.12 is: 18,705.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,198.36 : 19,828.50 = 12,451.12 : x
  2. Step 2: Convert to fraction form
    13,198.36/19,828.50 = 12,451.12/x
  3. Step 3: Cross multiply
    13,198.36x = 19,828.50 × 12,451.12
  4. Step 4: Simplify right side
    13,198.36x = 246,887,032.92
  5. Step 5: Solve for x
    x = 246,887,032.92/13,198.36
  6. Step 6: Final answer
    x = 18,705.89

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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.