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Finding the Fourth Proportional to 13,994.94, 20,992.41 and 13,294.17

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Solution

The fourth proportional to 13,994.94, 20,992.41 and 13,294.17 is: 19,941.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,994.94 : 20,992.41 = 13,294.17 : x
  2. Step 2: Convert to fraction form
    13,994.94/20,992.41 = 13,294.17/x
  3. Step 3: Cross multiply
    13,994.94x = 20,992.41 × 13,294.17
  4. Step 4: Simplify right side
    13,994.94x = 279,076,667.25
  5. Step 5: Solve for x
    x = 279,076,667.25/13,994.94
  6. Step 6: Final answer
    x = 19,941.26

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Similar ratio
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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.