Home / 13,472.65-20,209.89-4,112.73

Finding the Fourth Proportional to 13,472.65, 20,209.89 and 4,112.73

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Solution

The fourth proportional to 13,472.65, 20,209.89 and 4,112.73 is: 6,169.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,472.65 : 20,209.89 = 4,112.73 : x
  2. Step 2: Convert to fraction form
    13,472.65/20,209.89 = 4,112.73/x
  3. Step 3: Cross multiply
    13,472.65x = 20,209.89 × 4,112.73
  4. Step 4: Simplify right side
    13,472.65x = 83,117,820.90
  5. Step 5: Solve for x
    x = 83,117,820.90/13,472.65
  6. Step 6: Final answer
    x = 6,169.37

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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.