Home / 14,116.75-21,172.39-13,414.28

Finding the Fourth Proportional to 14,116.75, 21,172.39 and 13,414.28

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Solution

The fourth proportional to 14,116.75, 21,172.39 and 13,414.28 is: 20,118.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,116.75 : 21,172.39 = 13,414.28 : x
  2. Step 2: Convert to fraction form
    14,116.75/21,172.39 = 13,414.28/x
  3. Step 3: Cross multiply
    14,116.75x = 21,172.39 × 13,414.28
  4. Step 4: Simplify right side
    14,116.75x = 284,012,228.33
  5. Step 5: Solve for x
    x = 284,012,228.33/14,116.75
  6. Step 6: Final answer
    x = 20,118.81

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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.