Home / 13,995.33-20,986.68-4,131.15

Finding the Fourth Proportional to 13,995.33, 20,986.68 and 4,131.15

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Solution

The fourth proportional to 13,995.33, 20,986.68 and 4,131.15 is: 6,194.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.33 : 20,986.68 = 4,131.15 : x
  2. Step 2: Convert to fraction form
    13,995.33/20,986.68 = 4,131.15/x
  3. Step 3: Cross multiply
    13,995.33x = 20,986.68 × 4,131.15
  4. Step 4: Simplify right side
    13,995.33x = 86,699,123.08
  5. Step 5: Solve for x
    x = 86,699,123.08/13,995.33
  6. Step 6: Final answer
    x = 6,194.86

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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.