Home / 14,114.80-21,172.20-4,255.60

Finding the Fourth Proportional to 14,114.80, 21,172.20 and 4,255.60

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Solution

The fourth proportional to 14,114.80, 21,172.20 and 4,255.60 is: 6,383.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,114.80 : 21,172.20 = 4,255.60 : x
  2. Step 2: Convert to fraction form
    14,114.80/21,172.20 = 4,255.60/x
  3. Step 3: Cross multiply
    14,114.80x = 21,172.20 × 4,255.60
  4. Step 4: Simplify right side
    14,114.80x = 90,100,414.32
  5. Step 5: Solve for x
    x = 90,100,414.32/14,114.80
  6. Step 6: Final answer
    x = 6,383.40

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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.