Home / 14,028.58-21,043.99-8,185.78

Finding the Fourth Proportional to 14,028.58, 21,043.99 and 8,185.78

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Solution

The fourth proportional to 14,028.58, 21,043.99 and 8,185.78 is: 12,279.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028.58 : 21,043.99 = 8,185.78 : x
  2. Step 2: Convert to fraction form
    14,028.58/21,043.99 = 8,185.78/x
  3. Step 3: Cross multiply
    14,028.58x = 21,043.99 × 8,185.78
  4. Step 4: Simplify right side
    14,028.58x = 172,261,472.46
  5. Step 5: Solve for x
    x = 172,261,472.46/14,028.58
  6. Step 6: Final answer
    x = 12,279.32

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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.