Home / 13,273.80-19,910.70-5,488.20

Finding the Fourth Proportional to 13,273.80, 19,910.70 and 5,488.20

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Solution

The fourth proportional to 13,273.80, 19,910.70 and 5,488.20 is: 8,232.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,273.80 : 19,910.70 = 5,488.20 : x
  2. Step 2: Convert to fraction form
    13,273.80/19,910.70 = 5,488.20/x
  3. Step 3: Cross multiply
    13,273.80x = 19,910.70 × 5,488.20
  4. Step 4: Simplify right side
    13,273.80x = 109,273,903.74
  5. Step 5: Solve for x
    x = 109,273,903.74/13,273.80
  6. Step 6: Final answer
    x = 8,232.30

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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.