Home / 13,293.10-19,939.68-12,481.18

Finding the Fourth Proportional to 13,293.10, 19,939.68 and 12,481.18

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Solution

The fourth proportional to 13,293.10, 19,939.68 and 12,481.18 is: 18,721.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.10 : 19,939.68 = 12,481.18 : x
  2. Step 2: Convert to fraction form
    13,293.10/19,939.68 = 12,481.18/x
  3. Step 3: Cross multiply
    13,293.10x = 19,939.68 × 12,481.18
  4. Step 4: Simplify right side
    13,293.10x = 248,870,735.22
  5. Step 5: Solve for x
    x = 248,870,735.22/13,293.10
  6. Step 6: Final answer
    x = 18,721.80

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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.