Home / 13,992.84-19,314.18-11,179.80

Finding the Fourth Proportional to 13,992.84, 19,314.18 and 11,179.80

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Solution

The fourth proportional to 13,992.84, 19,314.18 and 11,179.80 is: 15,431.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,992.84 : 19,314.18 = 11,179.80 : x
  2. Step 2: Convert to fraction form
    13,992.84/19,314.18 = 11,179.80/x
  3. Step 3: Cross multiply
    13,992.84x = 19,314.18 × 11,179.80
  4. Step 4: Simplify right side
    13,992.84x = 215,928,669.56
  5. Step 5: Solve for x
    x = 215,928,669.56/13,992.84
  6. Step 6: Final answer
    x = 15,431.37

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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.