Home / 14,209.94-21,314.88-3,821.70

Finding the Fourth Proportional to 14,209.94, 21,314.88 and 3,821.70

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Solution

The fourth proportional to 14,209.94, 21,314.88 and 3,821.70 is: 5,732.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,209.94 : 21,314.88 = 3,821.70 : x
  2. Step 2: Convert to fraction form
    14,209.94/21,314.88 = 3,821.70/x
  3. Step 3: Cross multiply
    14,209.94x = 21,314.88 × 3,821.70
  4. Step 4: Simplify right side
    14,209.94x = 81,459,076.90
  5. Step 5: Solve for x
    x = 81,459,076.90/14,209.94
  6. Step 6: Final answer
    x = 5,732.54

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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.