Home / 14,204.40-21,256.20-12,375.60

Finding the Fourth Proportional to 14,204.40, 21,256.20 and 12,375.60

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Solution

The fourth proportional to 14,204.40, 21,256.20 and 12,375.60 is: 18,519.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,204.40 : 21,256.20 = 12,375.60 : x
  2. Step 2: Convert to fraction form
    14,204.40/21,256.20 = 12,375.60/x
  3. Step 3: Cross multiply
    14,204.40x = 21,256.20 × 12,375.60
  4. Step 4: Simplify right side
    14,204.40x = 263,058,228.72
  5. Step 5: Solve for x
    x = 263,058,228.72/14,204.40
  6. Step 6: Final answer
    x = 18,519.49

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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.