Home / 13,784.56-20,680.30-4,425.41

Finding the Fourth Proportional to 13,784.56, 20,680.30 and 4,425.41

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Solution

The fourth proportional to 13,784.56, 20,680.30 and 4,425.41 is: 6,639.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,784.56 : 20,680.30 = 4,425.41 : x
  2. Step 2: Convert to fraction form
    13,784.56/20,680.30 = 4,425.41/x
  3. Step 3: Cross multiply
    13,784.56x = 20,680.30 × 4,425.41
  4. Step 4: Simplify right side
    13,784.56x = 91,518,863.66
  5. Step 5: Solve for x
    x = 91,518,863.66/13,784.56
  6. Step 6: Final answer
    x = 6,639.23

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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.