Home / 13,987.81-20,996.30-6,202.09

Finding the Fourth Proportional to 13,987.81, 20,996.30 and 6,202.09

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Solution

The fourth proportional to 13,987.81, 20,996.30 and 6,202.09 is: 9,309.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.81 : 20,996.30 = 6,202.09 : x
  2. Step 2: Convert to fraction form
    13,987.81/20,996.30 = 6,202.09/x
  3. Step 3: Cross multiply
    13,987.81x = 20,996.30 × 6,202.09
  4. Step 4: Simplify right side
    13,987.81x = 130,220,942.27
  5. Step 5: Solve for x
    x = 130,220,942.27/13,987.81
  6. Step 6: Final answer
    x = 9,309.60

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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.