Home / 13,909.73-20,910.76-12,882.44

Finding the Fourth Proportional to 13,909.73, 20,910.76 and 12,882.44

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Solution

The fourth proportional to 13,909.73, 20,910.76 and 12,882.44 is: 19,366.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.73 : 20,910.76 = 12,882.44 : x
  2. Step 2: Convert to fraction form
    13,909.73/20,910.76 = 12,882.44/x
  3. Step 3: Cross multiply
    13,909.73x = 20,910.76 × 12,882.44
  4. Step 4: Simplify right side
    13,909.73x = 269,381,631.13
  5. Step 5: Solve for x
    x = 269,381,631.13/13,909.73
  6. Step 6: Final answer
    x = 19,366.42

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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.