Home / 13,986.03-20,979.45-6,195.45

Finding the Fourth Proportional to 13,986.03, 20,979.45 and 6,195.45

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Solution

The fourth proportional to 13,986.03, 20,979.45 and 6,195.45 is: 9,293.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986.03 : 20,979.45 = 6,195.45 : x
  2. Step 2: Convert to fraction form
    13,986.03/20,979.45 = 6,195.45/x
  3. Step 3: Cross multiply
    13,986.03x = 20,979.45 × 6,195.45
  4. Step 4: Simplify right side
    13,986.03x = 129,977,133.50
  5. Step 5: Solve for x
    x = 129,977,133.50/13,986.03
  6. Step 6: Final answer
    x = 9,293.35

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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.