Home / 13,203.92-19,694.58-12,285.36

Finding the Fourth Proportional to 13,203.92, 19,694.58 and 12,285.36

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Solution

The fourth proportional to 13,203.92, 19,694.58 and 12,285.36 is: 18,324.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203.92 : 19,694.58 = 12,285.36 : x
  2. Step 2: Convert to fraction form
    13,203.92/19,694.58 = 12,285.36/x
  3. Step 3: Cross multiply
    13,203.92x = 19,694.58 × 12,285.36
  4. Step 4: Simplify right side
    13,203.92x = 241,955,005.35
  5. Step 5: Solve for x
    x = 241,955,005.35/13,203.92
  6. Step 6: Final answer
    x = 18,324.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.