Home / 13,680.34-20,537.52-9,546.64

Finding the Fourth Proportional to 13,680.34, 20,537.52 and 9,546.64

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Solution

The fourth proportional to 13,680.34, 20,537.52 and 9,546.64 is: 14,331.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,680.34 : 20,537.52 = 9,546.64 : x
  2. Step 2: Convert to fraction form
    13,680.34/20,537.52 = 9,546.64/x
  3. Step 3: Cross multiply
    13,680.34x = 20,537.52 × 9,546.64
  4. Step 4: Simplify right side
    13,680.34x = 196,064,309.93
  5. Step 5: Solve for x
    x = 196,064,309.93/13,680.34
  6. Step 6: Final answer
    x = 14,331.83

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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.