Home / 12,331.44-18,506.88-5,760.72

Finding the Fourth Proportional to 12,331.44, 18,506.88 and 5,760.72

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Solution

The fourth proportional to 12,331.44, 18,506.88 and 5,760.72 is: 8,645.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,331.44 : 18,506.88 = 5,760.72 : x
  2. Step 2: Convert to fraction form
    12,331.44/18,506.88 = 5,760.72/x
  3. Step 3: Cross multiply
    12,331.44x = 18,506.88 × 5,760.72
  4. Step 4: Simplify right side
    12,331.44x = 106,612,953.75
  5. Step 5: Solve for x
    x = 106,612,953.75/12,331.44
  6. Step 6: Final answer
    x = 8,645.62

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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.