Home / 14,136.24-21,205.44-4,278

Finding the Fourth Proportional to 14,136.24, 21,205.44 and 4,278

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Solution

The fourth proportional to 14,136.24, 21,205.44 and 4,278 is: 6,417.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,136.24 : 21,205.44 = 4,278 : x
  2. Step 2: Convert to fraction form
    14,136.24/21,205.44 = 4,278/x
  3. Step 3: Cross multiply
    14,136.24x = 21,205.44 × 4,278
  4. Step 4: Simplify right side
    14,136.24x = 90,716,872.32
  5. Step 5: Solve for x
    x = 90,716,872.32/14,136.24
  6. Step 6: Final answer
    x = 6,417.33

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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.