Home / 14,334.40-21,451.20-12,505.60

Finding the Fourth Proportional to 14,334.40, 21,451.20 and 12,505.60

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Solution

The fourth proportional to 14,334.40, 21,451.20 and 12,505.60 is: 18,714.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,334.40 : 21,451.20 = 12,505.60 : x
  2. Step 2: Convert to fraction form
    14,334.40/21,451.20 = 12,505.60/x
  3. Step 3: Cross multiply
    14,334.40x = 21,451.20 × 12,505.60
  4. Step 4: Simplify right side
    14,334.40x = 268,260,126.72
  5. Step 5: Solve for x
    x = 268,260,126.72/14,334.40
  6. Step 6: Final answer
    x = 18,714.43

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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.