Home / 13,771.96-18,998.30-8,994.70

Finding the Fourth Proportional to 13,771.96, 18,998.30 and 8,994.70

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Solution

The fourth proportional to 13,771.96, 18,998.30 and 8,994.70 is: 12,408.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,771.96 : 18,998.30 = 8,994.70 : x
  2. Step 2: Convert to fraction form
    13,771.96/18,998.30 = 8,994.70/x
  3. Step 3: Cross multiply
    13,771.96x = 18,998.30 × 8,994.70
  4. Step 4: Simplify right side
    13,771.96x = 170,883,994.78
  5. Step 5: Solve for x
    x = 170,883,994.78/13,771.96
  6. Step 6: Final answer
    x = 12,408.11

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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.