Home / 14,576.34-20,121.96-9,540.79

Finding the Fourth Proportional to 14,576.34, 20,121.96 and 9,540.79

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Solution

The fourth proportional to 14,576.34, 20,121.96 and 9,540.79 is: 13,170.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,576.34 : 20,121.96 = 9,540.79 : x
  2. Step 2: Convert to fraction form
    14,576.34/20,121.96 = 9,540.79/x
  3. Step 3: Cross multiply
    14,576.34x = 20,121.96 × 9,540.79
  4. Step 4: Simplify right side
    14,576.34x = 191,979,394.75
  5. Step 5: Solve for x
    x = 191,979,394.75/14,576.34
  6. Step 6: Final answer
    x = 13,170.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.