Home / 13,456.00-20,178.11-6,788.39

Finding the Fourth Proportional to 13,456.00, 20,178.11 and 6,788.39

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Solution

The fourth proportional to 13,456.00, 20,178.11 and 6,788.39 is: 10,179.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456.00 : 20,178.11 = 6,788.39 : x
  2. Step 2: Convert to fraction form
    13,456.00/20,178.11 = 6,788.39/x
  3. Step 3: Cross multiply
    13,456.00x = 20,178.11 × 6,788.39
  4. Step 4: Simplify right side
    13,456.00x = 136,976,947.56
  5. Step 5: Solve for x
    x = 136,976,947.56/13,456.00
  6. Step 6: Final answer
    x = 10,179.62

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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.