Home / 14,118.79-21,136.57-12,367.22

Finding the Fourth Proportional to 14,118.79, 21,136.57 and 12,367.22

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Solution

The fourth proportional to 14,118.79, 21,136.57 and 12,367.22 is: 18,514.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,118.79 : 21,136.57 = 12,367.22 : x
  2. Step 2: Convert to fraction form
    14,118.79/21,136.57 = 12,367.22/x
  3. Step 3: Cross multiply
    14,118.79x = 21,136.57 × 12,367.22
  4. Step 4: Simplify right side
    14,118.79x = 261,400,505.55
  5. Step 5: Solve for x
    x = 261,400,505.55/14,118.79
  6. Step 6: Final answer
    x = 18,514.38

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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.