Home / 13,914.75-20,878.96-6,517.92

Finding the Fourth Proportional to 13,914.75, 20,878.96 and 6,517.92

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Solution

The fourth proportional to 13,914.75, 20,878.96 and 6,517.92 is: 9,780.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,914.75 : 20,878.96 = 6,517.92 : x
  2. Step 2: Convert to fraction form
    13,914.75/20,878.96 = 6,517.92/x
  3. Step 3: Cross multiply
    13,914.75x = 20,878.96 × 6,517.92
  4. Step 4: Simplify right side
    13,914.75x = 136,087,390.96
  5. Step 5: Solve for x
    x = 136,087,390.96/13,914.75
  6. Step 6: Final answer
    x = 9,780.08

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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.