Home / 14,136.15-21,167.78-11,220.15

Finding the Fourth Proportional to 14,136.15, 21,167.78 and 11,220.15

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Solution

The fourth proportional to 14,136.15, 21,167.78 and 11,220.15 is: 16,801.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,136.15 : 21,167.78 = 11,220.15 : x
  2. Step 2: Convert to fraction form
    14,136.15/21,167.78 = 11,220.15/x
  3. Step 3: Cross multiply
    14,136.15x = 21,167.78 × 11,220.15
  4. Step 4: Simplify right side
    14,136.15x = 237,505,610.67
  5. Step 5: Solve for x
    x = 237,505,610.67/14,136.15
  6. Step 6: Final answer
    x = 16,801.29

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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.