Home / 13,964.80-20,947.46-11,178.54

Finding the Fourth Proportional to 13,964.80, 20,947.46 and 11,178.54

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Solution

The fourth proportional to 13,964.80, 20,947.46 and 11,178.54 is: 16,768.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,964.80 : 20,947.46 = 11,178.54 : x
  2. Step 2: Convert to fraction form
    13,964.80/20,947.46 = 11,178.54/x
  3. Step 3: Cross multiply
    13,964.80x = 20,947.46 × 11,178.54
  4. Step 4: Simplify right side
    13,964.80x = 234,162,019.51
  5. Step 5: Solve for x
    x = 234,162,019.51/13,964.80
  6. Step 6: Final answer
    x = 16,768.02

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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.