Home / 13,860.92-19,083.66-11,217.08

Finding the Fourth Proportional to 13,860.92, 19,083.66 and 11,217.08

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Solution

The fourth proportional to 13,860.92, 19,083.66 and 11,217.08 is: 15,443.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.92 : 19,083.66 = 11,217.08 : x
  2. Step 2: Convert to fraction form
    13,860.92/19,083.66 = 11,217.08/x
  3. Step 3: Cross multiply
    13,860.92x = 19,083.66 × 11,217.08
  4. Step 4: Simplify right side
    13,860.92x = 214,062,940.91
  5. Step 5: Solve for x
    x = 214,062,940.91/13,860.92
  6. Step 6: Final answer
    x = 15,443.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.