Home / 13,990.48-20,984.79-4,136.23

Finding the Fourth Proportional to 13,990.48, 20,984.79 and 4,136.23

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Solution

The fourth proportional to 13,990.48, 20,984.79 and 4,136.23 is: 6,204.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990.48 : 20,984.79 = 4,136.23 : x
  2. Step 2: Convert to fraction form
    13,990.48/20,984.79 = 4,136.23/x
  3. Step 3: Cross multiply
    13,990.48x = 20,984.79 × 4,136.23
  4. Step 4: Simplify right side
    13,990.48x = 86,797,917.94
  5. Step 5: Solve for x
    x = 86,797,917.94/13,990.48
  6. Step 6: Final answer
    x = 6,204.07

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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.