Home / 13,914.12-20,876.31-6,520.98

Finding the Fourth Proportional to 13,914.12, 20,876.31 and 6,520.98

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Solution

The fourth proportional to 13,914.12, 20,876.31 and 6,520.98 is: 9,783.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,914.12 : 20,876.31 = 6,520.98 : x
  2. Step 2: Convert to fraction form
    13,914.12/20,876.31 = 6,520.98/x
  3. Step 3: Cross multiply
    13,914.12x = 20,876.31 × 6,520.98
  4. Step 4: Simplify right side
    13,914.12x = 136,133,999.98
  5. Step 5: Solve for x
    x = 136,133,999.98/13,914.12
  6. Step 6: Final answer
    x = 9,783.87

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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.