Home / 13,198.50-19,801.80-4,439.70

Finding the Fourth Proportional to 13,198.50, 19,801.80 and 4,439.70

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Solution

The fourth proportional to 13,198.50, 19,801.80 and 4,439.70 is: 6,660.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,198.50 : 19,801.80 = 4,439.70 : x
  2. Step 2: Convert to fraction form
    13,198.50/19,801.80 = 4,439.70/x
  3. Step 3: Cross multiply
    13,198.50x = 19,801.80 × 4,439.70
  4. Step 4: Simplify right side
    13,198.50x = 87,914,051.46
  5. Step 5: Solve for x
    x = 87,914,051.46/13,198.50
  6. Step 6: Final answer
    x = 6,660.91

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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.