Home / 13,441.50-18,549.36-8,136.36

Finding the Fourth Proportional to 13,441.50, 18,549.36 and 8,136.36

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Solution

The fourth proportional to 13,441.50, 18,549.36 and 8,136.36 is: 11,228.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.50 : 18,549.36 = 8,136.36 : x
  2. Step 2: Convert to fraction form
    13,441.50/18,549.36 = 8,136.36/x
  3. Step 3: Cross multiply
    13,441.50x = 18,549.36 × 8,136.36
  4. Step 4: Simplify right side
    13,441.50x = 150,924,270.73
  5. Step 5: Solve for x
    x = 150,924,270.73/13,441.50
  6. Step 6: Final answer
    x = 11,228.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.