Home / 14,119.70-21,172.71-4,257.14

Finding the Fourth Proportional to 14,119.70, 21,172.71 and 4,257.14

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Solution

The fourth proportional to 14,119.70, 21,172.71 and 4,257.14 is: 6,383.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,119.70 : 21,172.71 = 4,257.14 : x
  2. Step 2: Convert to fraction form
    14,119.70/21,172.71 = 4,257.14/x
  3. Step 3: Cross multiply
    14,119.70x = 21,172.71 × 4,257.14
  4. Step 4: Simplify right side
    14,119.70x = 90,135,190.65
  5. Step 5: Solve for x
    x = 90,135,190.65/14,119.70
  6. Step 6: Final answer
    x = 6,383.65

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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.